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Finding the Fourth Proportional to 55,753.81, 83,613.10 and 18,307.71

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Solution

The fourth proportional to 55,753.81, 83,613.10 and 18,307.71 is: 27,455.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,753.81 : 83,613.10 = 18,307.71 : x
  2. Step 2: Convert to fraction form
    55,753.81/83,613.10 = 18,307.71/x
  3. Step 3: Cross multiply
    55,753.81x = 83,613.10 × 18,307.71
  4. Step 4: Simplify right side
    55,753.81x = 1,530,764,295.46
  5. Step 5: Solve for x
    x = 1,530,764,295.46/55,753.81
  6. Step 6: Final answer
    x = 27,455.78

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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.