Home / 87,644.01-120,694.41-76,153.76

Finding the Fourth Proportional to 87,644.01, 120,694.41 and 76,153.76

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Solution

The fourth proportional to 87,644.01, 120,694.41 and 76,153.76 is: 104,871.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,644.01 : 120,694.41 = 76,153.76 : x
  2. Step 2: Convert to fraction form
    87,644.01/120,694.41 = 76,153.76/x
  3. Step 3: Cross multiply
    87,644.01x = 120,694.41 × 76,153.76
  4. Step 4: Simplify right side
    87,644.01x = 9,191,332,529.01
  5. Step 5: Solve for x
    x = 9,191,332,529.01/87,644.01
  6. Step 6: Final answer
    x = 104,871.20

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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.