Home / 54,717.08-75,513.12-30,520.76

Finding the Fourth Proportional to 54,717.08, 75,513.12 and 30,520.76

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Solution

The fourth proportional to 54,717.08, 75,513.12 and 30,520.76 is: 42,120.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,717.08 : 75,513.12 = 30,520.76 : x
  2. Step 2: Convert to fraction form
    54,717.08/75,513.12 = 30,520.76/x
  3. Step 3: Cross multiply
    54,717.08x = 75,513.12 × 30,520.76
  4. Step 4: Simplify right side
    54,717.08x = 2,304,717,812.37
  5. Step 5: Solve for x
    x = 2,304,717,812.37/54,717.08
  6. Step 6: Final answer
    x = 42,120.63

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Half scale
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Double scale
Find fourth proportional to 54,718.08, 75,514.50 and 30,521.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.