Home / 40,781.79-61,166.10-11,192.70

Finding the Fourth Proportional to 40,781.79, 61,166.10 and 11,192.70

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Solution

The fourth proportional to 40,781.79, 61,166.10 and 11,192.70 is: 16,787.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,781.79 : 61,166.10 = 11,192.70 : x
  2. Step 2: Convert to fraction form
    40,781.79/61,166.10 = 11,192.70/x
  3. Step 3: Cross multiply
    40,781.79x = 61,166.10 × 11,192.70
  4. Step 4: Simplify right side
    40,781.79x = 684,613,807.47
  5. Step 5: Solve for x
    x = 684,613,807.47/40,781.79
  6. Step 6: Final answer
    x = 16,787.24

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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.