Home / 87,429.40-131,144.10-59,435.80

Finding the Fourth Proportional to 87,429.40, 131,144.10 and 59,435.80

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Solution

The fourth proportional to 87,429.40, 131,144.10 and 59,435.80 is: 89,153.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,429.40 : 131,144.10 = 59,435.80 : x
  2. Step 2: Convert to fraction form
    87,429.40/131,144.10 = 59,435.80/x
  3. Step 3: Cross multiply
    87,429.40x = 131,144.10 × 59,435.80
  4. Step 4: Simplify right side
    87,429.40x = 7,794,654,498.78
  5. Step 5: Solve for x
    x = 7,794,654,498.78/87,429.40
  6. Step 6: Final answer
    x = 89,153.70

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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.