Home / 42,119.28-58,123.68-27,761.76

Finding the Fourth Proportional to 42,119.28, 58,123.68 and 27,761.76

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Solution

The fourth proportional to 42,119.28, 58,123.68 and 27,761.76 is: 38,310.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,119.28 : 58,123.68 = 27,761.76 : x
  2. Step 2: Convert to fraction form
    42,119.28/58,123.68 = 27,761.76/x
  3. Step 3: Cross multiply
    42,119.28x = 58,123.68 × 27,761.76
  4. Step 4: Simplify right side
    42,119.28x = 1,613,615,654.48
  5. Step 5: Solve for x
    x = 1,613,615,654.48/42,119.28
  6. Step 6: Final answer
    x = 38,310.62

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Double scale
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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.