Home / 87,761.80-131,656.36-28,583.70

Finding the Fourth Proportional to 87,761.80, 131,656.36 and 28,583.70

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Solution

The fourth proportional to 87,761.80, 131,656.36 and 28,583.70 is: 42,880.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,761.80 : 131,656.36 = 28,583.70 : x
  2. Step 2: Convert to fraction form
    87,761.80/131,656.36 = 28,583.70/x
  3. Step 3: Cross multiply
    87,761.80x = 131,656.36 × 28,583.70
  4. Step 4: Simplify right side
    87,761.80x = 3,763,225,897.33
  5. Step 5: Solve for x
    x = 3,763,225,897.33/87,761.80
  6. Step 6: Final answer
    x = 42,880.00

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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.