Home / 87,711.70-131,567.55-56,218.90

Finding the Fourth Proportional to 87,711.70, 131,567.55 and 56,218.90

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Solution

The fourth proportional to 87,711.70, 131,567.55 and 56,218.90 is: 84,328.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,711.70 : 131,567.55 = 56,218.90 : x
  2. Step 2: Convert to fraction form
    87,711.70/131,567.55 = 56,218.90/x
  3. Step 3: Cross multiply
    87,711.70x = 131,567.55 × 56,218.90
  4. Step 4: Simplify right side
    87,711.70x = 7,396,582,936.70
  5. Step 5: Solve for x
    x = 7,396,582,936.70/87,711.70
  6. Step 6: Final answer
    x = 84,328.35

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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.