Home / 87,703.20-131,574.42-40,930.56

Finding the Fourth Proportional to 87,703.20, 131,574.42 and 40,930.56

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Solution

The fourth proportional to 87,703.20, 131,574.42 and 40,930.56 is: 61,405.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,703.20 : 131,574.42 = 40,930.56 : x
  2. Step 2: Convert to fraction form
    87,703.20/131,574.42 = 40,930.56/x
  3. Step 3: Cross multiply
    87,703.20x = 131,574.42 × 40,930.56
  4. Step 4: Simplify right side
    87,703.20x = 5,385,414,692.28
  5. Step 5: Solve for x
    x = 5,385,414,692.28/87,703.20
  6. Step 6: Final answer
    x = 61,405.00

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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.