Home / 87,046.66-120,192.18-66,871.54

Finding the Fourth Proportional to 87,046.66, 120,192.18 and 66,871.54

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Solution

The fourth proportional to 87,046.66, 120,192.18 and 66,871.54 is: 92,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,046.66 : 120,192.18 = 66,871.54 : x
  2. Step 2: Convert to fraction form
    87,046.66/120,192.18 = 66,871.54/x
  3. Step 3: Cross multiply
    87,046.66x = 120,192.18 × 66,871.54
  4. Step 4: Simplify right side
    87,046.66x = 8,037,436,172.56
  5. Step 5: Solve for x
    x = 8,037,436,172.56/87,046.66
  6. Step 6: Final answer
    x = 92,334.80

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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.