Home / 61,839.57-85,314.27-40,354.47

Finding the Fourth Proportional to 61,839.57, 85,314.27 and 40,354.47

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Solution

The fourth proportional to 61,839.57, 85,314.27 and 40,354.47 is: 55,673.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,839.57 : 85,314.27 = 40,354.47 : x
  2. Step 2: Convert to fraction form
    61,839.57/85,314.27 = 40,354.47/x
  3. Step 3: Cross multiply
    61,839.57x = 85,314.27 × 40,354.47
  4. Step 4: Simplify right side
    61,839.57x = 3,442,812,149.29
  5. Step 5: Solve for x
    x = 3,442,812,149.29/61,839.57
  6. Step 6: Final answer
    x = 55,673.29

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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.