Home / 54,590.20-75,334.80-30,717.28

Finding the Fourth Proportional to 54,590.20, 75,334.80 and 30,717.28

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Solution

The fourth proportional to 54,590.20, 75,334.80 and 30,717.28 is: 42,390.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,590.20 : 75,334.80 = 30,717.28 : x
  2. Step 2: Convert to fraction form
    54,590.20/75,334.80 = 30,717.28/x
  3. Step 3: Cross multiply
    54,590.20x = 75,334.80 × 30,717.28
  4. Step 4: Simplify right side
    54,590.20x = 2,314,080,145.34
  5. Step 5: Solve for x
    x = 2,314,080,145.34/54,590.20
  6. Step 6: Final answer
    x = 42,390.03

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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.