Home / 40,531.50-60,747.33-28,781.10

Finding the Fourth Proportional to 40,531.50, 60,747.33 and 28,781.10

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Solution

The fourth proportional to 40,531.50, 60,747.33 and 28,781.10 is: 43,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,531.50 : 60,747.33 = 28,781.10 : x
  2. Step 2: Convert to fraction form
    40,531.50/60,747.33 = 28,781.10/x
  3. Step 3: Cross multiply
    40,531.50x = 60,747.33 × 28,781.10
  4. Step 4: Simplify right side
    40,531.50x = 1,748,374,979.46
  5. Step 5: Solve for x
    x = 1,748,374,979.46/40,531.50
  6. Step 6: Final answer
    x = 43,136.20

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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.