Home / 87,564.20-131,346.30-52,543.40

Finding the Fourth Proportional to 87,564.20, 131,346.30 and 52,543.40

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Solution

The fourth proportional to 87,564.20, 131,346.30 and 52,543.40 is: 78,815.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,564.20 : 131,346.30 = 52,543.40 : x
  2. Step 2: Convert to fraction form
    87,564.20/131,346.30 = 52,543.40/x
  3. Step 3: Cross multiply
    87,564.20x = 131,346.30 × 52,543.40
  4. Step 4: Simplify right side
    87,564.20x = 6,901,381,179.42
  5. Step 5: Solve for x
    x = 6,901,381,179.42/87,564.20
  6. Step 6: Final answer
    x = 78,815.10

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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.