Home / 85,140.29-117,513.92-49,350.04

Finding the Fourth Proportional to 85,140.29, 117,513.92 and 49,350.04

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Solution

The fourth proportional to 85,140.29, 117,513.92 and 49,350.04 is: 68,114.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,140.29 : 117,513.92 = 49,350.04 : x
  2. Step 2: Convert to fraction form
    85,140.29/117,513.92 = 49,350.04/x
  3. Step 3: Cross multiply
    85,140.29x = 117,513.92 × 49,350.04
  4. Step 4: Simplify right side
    85,140.29x = 5,799,316,652.56
  5. Step 5: Solve for x
    x = 5,799,316,652.56/85,140.29
  6. Step 6: Final answer
    x = 68,114.83

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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.