Home / 87,073.18-120,174.12-53,101.37

Finding the Fourth Proportional to 87,073.18, 120,174.12 and 53,101.37

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Solution

The fourth proportional to 87,073.18, 120,174.12 and 53,101.37 is: 73,287.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,073.18 : 120,174.12 = 53,101.37 : x
  2. Step 2: Convert to fraction form
    87,073.18/120,174.12 = 53,101.37/x
  3. Step 3: Cross multiply
    87,073.18x = 120,174.12 × 53,101.37
  4. Step 4: Simplify right side
    87,073.18x = 6,381,411,060.33
  5. Step 5: Solve for x
    x = 6,381,411,060.33/87,073.18
  6. Step 6: Final answer
    x = 73,287.91

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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.