Home / 87,629.60-131,444.40-31,496.60

Finding the Fourth Proportional to 87,629.60, 131,444.40 and 31,496.60

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Solution

The fourth proportional to 87,629.60, 131,444.40 and 31,496.60 is: 47,244.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,629.60 : 131,444.40 = 31,496.60 : x
  2. Step 2: Convert to fraction form
    87,629.60/131,444.40 = 31,496.60/x
  3. Step 3: Cross multiply
    87,629.60x = 131,444.40 × 31,496.60
  4. Step 4: Simplify right side
    87,629.60x = 4,140,051,689.04
  5. Step 5: Solve for x
    x = 4,140,051,689.04/87,629.60
  6. Step 6: Final answer
    x = 47,244.90

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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.