Home / 87,265.68-130,898.40-28,105.92

Finding the Fourth Proportional to 87,265.68, 130,898.40 and 28,105.92

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Solution

The fourth proportional to 87,265.68, 130,898.40 and 28,105.92 is: 42,158.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,265.68 : 130,898.40 = 28,105.92 : x
  2. Step 2: Convert to fraction form
    87,265.68/130,898.40 = 28,105.92/x
  3. Step 3: Cross multiply
    87,265.68x = 130,898.40 × 28,105.92
  4. Step 4: Simplify right side
    87,265.68x = 3,679,019,958.53
  5. Step 5: Solve for x
    x = 3,679,019,958.53/87,265.68
  6. Step 6: Final answer
    x = 42,158.84

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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.