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Finding the Fourth Proportional to 87,170.58, 130,736.43 and 34,565.94

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Solution

The fourth proportional to 87,170.58, 130,736.43 and 34,565.94 is: 51,841.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,170.58 : 130,736.43 = 34,565.94 : x
  2. Step 2: Convert to fraction form
    87,170.58/130,736.43 = 34,565.94/x
  3. Step 3: Cross multiply
    87,170.58x = 130,736.43 × 34,565.94
  4. Step 4: Simplify right side
    87,170.58x = 4,519,027,595.19
  5. Step 5: Solve for x
    x = 4,519,027,595.19/87,170.58
  6. Step 6: Final answer
    x = 51,841.20

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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.