Home / 54,375.84-75,031.92-30,499.20

Finding the Fourth Proportional to 54,375.84, 75,031.92 and 30,499.20

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Solution

The fourth proportional to 54,375.84, 75,031.92 and 30,499.20 is: 42,085.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,375.84 : 75,031.92 = 30,499.20 : x
  2. Step 2: Convert to fraction form
    54,375.84/75,031.92 = 30,499.20/x
  3. Step 3: Cross multiply
    54,375.84x = 75,031.92 × 30,499.20
  4. Step 4: Simplify right side
    54,375.84x = 2,288,413,534.46
  5. Step 5: Solve for x
    x = 2,288,413,534.46/54,375.84
  6. Step 6: Final answer
    x = 42,085.12

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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.