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Finding the Fourth Proportional to 87,194.52, 130,849.20 and 47,779.30

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Solution

The fourth proportional to 87,194.52, 130,849.20 and 47,779.30 is: 71,700.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,194.52 : 130,849.20 = 47,779.30 : x
  2. Step 2: Convert to fraction form
    87,194.52/130,849.20 = 47,779.30/x
  3. Step 3: Cross multiply
    87,194.52x = 130,849.20 × 47,779.30
  4. Step 4: Simplify right side
    87,194.52x = 6,251,883,181.56
  5. Step 5: Solve for x
    x = 6,251,883,181.56/87,194.52
  6. Step 6: Final answer
    x = 71,700.41

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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.