Home / 87,761.55-131,655.98-28,583.45

Finding the Fourth Proportional to 87,761.55, 131,655.98 and 28,583.45

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Solution

The fourth proportional to 87,761.55, 131,655.98 and 28,583.45 is: 42,879.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,761.55 : 131,655.98 = 28,583.45 : x
  2. Step 2: Convert to fraction form
    87,761.55/131,655.98 = 28,583.45/x
  3. Step 3: Cross multiply
    87,761.55x = 131,655.98 × 28,583.45
  4. Step 4: Simplify right side
    87,761.55x = 3,763,181,320.33
  5. Step 5: Solve for x
    x = 3,763,181,320.33/87,761.55
  6. Step 6: Final answer
    x = 42,879.61

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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.