Home / 87,385.56-130,777.15-53,629.17

Finding the Fourth Proportional to 87,385.56, 130,777.15 and 53,629.17

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Solution

The fourth proportional to 87,385.56, 130,777.15 and 53,629.17 is: 80,258.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,385.56 : 130,777.15 = 53,629.17 : x
  2. Step 2: Convert to fraction form
    87,385.56/130,777.15 = 53,629.17/x
  3. Step 3: Cross multiply
    87,385.56x = 130,777.15 × 53,629.17
  4. Step 4: Simplify right side
    87,385.56x = 7,013,469,485.53
  5. Step 5: Solve for x
    x = 7,013,469,485.53/87,385.56
  6. Step 6: Final answer
    x = 80,258.91

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1.5x scale

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.