Home / 87,189.63-130,841.85-47,774.43

Finding the Fourth Proportional to 87,189.63, 130,841.85 and 47,774.43

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Solution

The fourth proportional to 87,189.63, 130,841.85 and 47,774.43 is: 71,693.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,189.63 : 130,841.85 = 47,774.43 : x
  2. Step 2: Convert to fraction form
    87,189.63/130,841.85 = 47,774.43/x
  3. Step 3: Cross multiply
    87,189.63x = 130,841.85 × 47,774.43
  4. Step 4: Simplify right side
    87,189.63x = 6,250,894,803.90
  5. Step 5: Solve for x
    x = 6,250,894,803.90/87,189.63
  6. Step 6: Final answer
    x = 71,693.10

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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.