Home / 87,099.36-130,654.98-34,508.76

Finding the Fourth Proportional to 87,099.36, 130,654.98 and 34,508.76

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Solution

The fourth proportional to 87,099.36, 130,654.98 and 34,508.76 is: 51,765.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,099.36 : 130,654.98 = 34,508.76 : x
  2. Step 2: Convert to fraction form
    87,099.36/130,654.98 = 34,508.76/x
  3. Step 3: Cross multiply
    87,099.36x = 130,654.98 × 34,508.76
  4. Step 4: Simplify right side
    87,099.36x = 4,508,741,347.62
  5. Step 5: Solve for x
    x = 4,508,741,347.62/87,099.36
  6. Step 6: Final answer
    x = 51,765.49

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Double scale
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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.