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Finding the Fourth Proportional to 51,613.68, 71,227.68 and 28,957.70

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Solution

The fourth proportional to 51,613.68, 71,227.68 and 28,957.70 is: 39,962.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,613.68 : 71,227.68 = 28,957.70 : x
  2. Step 2: Convert to fraction form
    51,613.68/71,227.68 = 28,957.70/x
  3. Step 3: Cross multiply
    51,613.68x = 71,227.68 × 28,957.70
  4. Step 4: Simplify right side
    51,613.68x = 2,062,589,789.14
  5. Step 5: Solve for x
    x = 2,062,589,789.14/51,613.68
  6. Step 6: Final answer
    x = 39,962.08

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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.