Home / 87,473.58-120,669.29-51,151.28

Finding the Fourth Proportional to 87,473.58, 120,669.29 and 51,151.28

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Solution

The fourth proportional to 87,473.58, 120,669.29 and 51,151.28 is: 70,562.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,473.58 : 120,669.29 = 51,151.28 : x
  2. Step 2: Convert to fraction form
    87,473.58/120,669.29 = 51,151.28/x
  3. Step 3: Cross multiply
    87,473.58x = 120,669.29 × 51,151.28
  4. Step 4: Simplify right side
    87,473.58x = 6,172,387,781.09
  5. Step 5: Solve for x
    x = 6,172,387,781.09/87,473.58
  6. Step 6: Final answer
    x = 70,562.88

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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.