Home / 87,980.64-131,972.25-60,936.31

Finding the Fourth Proportional to 87,980.64, 131,972.25 and 60,936.31

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Solution

The fourth proportional to 87,980.64, 131,972.25 and 60,936.31 is: 91,405.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,980.64 : 131,972.25 = 60,936.31 : x
  2. Step 2: Convert to fraction form
    87,980.64/131,972.25 = 60,936.31/x
  3. Step 3: Cross multiply
    87,980.64x = 131,972.25 × 60,936.31
  4. Step 4: Simplify right side
    87,980.64x = 8,041,901,445.55
  5. Step 5: Solve for x
    x = 8,041,901,445.55/87,980.64
  6. Step 6: Final answer
    x = 91,405.35

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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.