Home / 87,817.20-131,725.80-56,324.40

Finding the Fourth Proportional to 87,817.20, 131,725.80 and 56,324.40

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Solution

The fourth proportional to 87,817.20, 131,725.80 and 56,324.40 is: 84,486.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,817.20 : 131,725.80 = 56,324.40 : x
  2. Step 2: Convert to fraction form
    87,817.20/131,725.80 = 56,324.40/x
  3. Step 3: Cross multiply
    87,817.20x = 131,725.80 × 56,324.40
  4. Step 4: Simplify right side
    87,817.20x = 7,419,376,649.52
  5. Step 5: Solve for x
    x = 7,419,376,649.52/87,817.20
  6. Step 6: Final answer
    x = 84,486.60

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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.