Home / 87,456.98-131,204.61-28,298.63

Finding the Fourth Proportional to 87,456.98, 131,204.61 and 28,298.63

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Solution

The fourth proportional to 87,456.98, 131,204.61 and 28,298.63 is: 42,454.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,456.98 : 131,204.61 = 28,298.63 : x
  2. Step 2: Convert to fraction form
    87,456.98/131,204.61 = 28,298.63/x
  3. Step 3: Cross multiply
    87,456.98x = 131,204.61 × 28,298.63
  4. Step 4: Simplify right side
    87,456.98x = 3,712,911,040.70
  5. Step 5: Solve for x
    x = 3,712,911,040.70/87,456.98
  6. Step 6: Final answer
    x = 42,454.14

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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.