Home / 40,720.11-61,092.92-12,258.19

Finding the Fourth Proportional to 40,720.11, 61,092.92 and 12,258.19

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Solution

The fourth proportional to 40,720.11, 61,092.92 and 12,258.19 is: 18,391.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,720.11 : 61,092.92 = 12,258.19 : x
  2. Step 2: Convert to fraction form
    40,720.11/61,092.92 = 12,258.19/x
  3. Step 3: Cross multiply
    40,720.11x = 61,092.92 × 12,258.19
  4. Step 4: Simplify right side
    40,720.11x = 748,888,621.01
  5. Step 5: Solve for x
    x = 748,888,621.01/40,720.11
  6. Step 6: Final answer
    x = 18,391.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.