Home / 87,693.90-131,454.45-43,284.30

Finding the Fourth Proportional to 87,693.90, 131,454.45 and 43,284.30

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Solution

The fourth proportional to 87,693.90, 131,454.45 and 43,284.30 is: 64,883.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,693.90 : 131,454.45 = 43,284.30 : x
  2. Step 2: Convert to fraction form
    87,693.90/131,454.45 = 43,284.30/x
  3. Step 3: Cross multiply
    87,693.90x = 131,454.45 × 43,284.30
  4. Step 4: Simplify right side
    87,693.90x = 5,689,913,850.14
  5. Step 5: Solve for x
    x = 5,689,913,850.14/87,693.90
  6. Step 6: Final answer
    x = 64,883.80

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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.