Home / 87,298.25-130,938.87-28,176.35

Finding the Fourth Proportional to 87,298.25, 130,938.87 and 28,176.35

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Solution

The fourth proportional to 87,298.25, 130,938.87 and 28,176.35 is: 42,261.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,298.25 : 130,938.87 = 28,176.35 : x
  2. Step 2: Convert to fraction form
    87,298.25/130,938.87 = 28,176.35/x
  3. Step 3: Cross multiply
    87,298.25x = 130,938.87 × 28,176.35
  4. Step 4: Simplify right side
    87,298.25x = 3,689,379,862.73
  5. Step 5: Solve for x
    x = 3,689,379,862.73/87,298.25
  6. Step 6: Final answer
    x = 42,261.78

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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.