Home / 87,422.90-130,912.91-54,207.83

Finding the Fourth Proportional to 87,422.90, 130,912.91 and 54,207.83

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Solution

The fourth proportional to 87,422.90, 130,912.91 and 54,207.83 is: 81,174.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,422.90 : 130,912.91 = 54,207.83 : x
  2. Step 2: Convert to fraction form
    87,422.90/130,912.91 = 54,207.83/x
  3. Step 3: Cross multiply
    87,422.90x = 130,912.91 × 54,207.83
  4. Step 4: Simplify right side
    87,422.90x = 7,096,505,029.61
  5. Step 5: Solve for x
    x = 7,096,505,029.61/87,422.90
  6. Step 6: Final answer
    x = 81,174.45

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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.