Home / 87,401.80-120,583.38-51,573.88

Finding the Fourth Proportional to 87,401.80, 120,583.38 and 51,573.88

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Solution

The fourth proportional to 87,401.80, 120,583.38 and 51,573.88 is: 71,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,401.80 : 120,583.38 = 51,573.88 : x
  2. Step 2: Convert to fraction form
    87,401.80/120,583.38 = 51,573.88/x
  3. Step 3: Cross multiply
    87,401.80x = 120,583.38 × 51,573.88
  4. Step 4: Simplify right side
    87,401.80x = 6,218,952,770.11
  5. Step 5: Solve for x
    x = 6,218,952,770.11/87,401.80
  6. Step 6: Final answer
    x = 71,153.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.