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Finding the Fourth Proportional to 83,277.40, 124,916.10 and 27,122.80

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Solution

The fourth proportional to 83,277.40, 124,916.10 and 27,122.80 is: 40,684.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,277.40 : 124,916.10 = 27,122.80 : x
  2. Step 2: Convert to fraction form
    83,277.40/124,916.10 = 27,122.80/x
  3. Step 3: Cross multiply
    83,277.40x = 124,916.10 × 27,122.80
  4. Step 4: Simplify right side
    83,277.40x = 3,388,074,397.08
  5. Step 5: Solve for x
    x = 3,388,074,397.08/83,277.40
  6. Step 6: Final answer
    x = 40,684.20

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Similar ratio
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1.5x scale

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.