Home / 87,356.34-120,429.63-73,873.44

Finding the Fourth Proportional to 87,356.34, 120,429.63 and 73,873.44

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Solution

The fourth proportional to 87,356.34, 120,429.63 and 73,873.44 is: 101,842.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,356.34 : 120,429.63 = 73,873.44 : x
  2. Step 2: Convert to fraction form
    87,356.34/120,429.63 = 73,873.44/x
  3. Step 3: Cross multiply
    87,356.34x = 120,429.63 × 73,873.44
  4. Step 4: Simplify right side
    87,356.34x = 8,896,551,046.03
  5. Step 5: Solve for x
    x = 8,896,551,046.03/87,356.34
  6. Step 6: Final answer
    x = 101,842.08

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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.