Home / 87,374.12-131,088.78-31,213.04

Finding the Fourth Proportional to 87,374.12, 131,088.78 and 31,213.04

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Solution

The fourth proportional to 87,374.12, 131,088.78 and 31,213.04 is: 46,829.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,374.12 : 131,088.78 = 31,213.04 : x
  2. Step 2: Convert to fraction form
    87,374.12/131,088.78 = 31,213.04/x
  3. Step 3: Cross multiply
    87,374.12x = 131,088.78 × 31,213.04
  4. Step 4: Simplify right side
    87,374.12x = 4,091,679,333.69
  5. Step 5: Solve for x
    x = 4,091,679,333.69/87,374.12
  6. Step 6: Final answer
    x = 46,829.42

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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.