Home / 87,546.57-120,809.31-51,739.91

Finding the Fourth Proportional to 87,546.57, 120,809.31 and 51,739.91

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Solution

The fourth proportional to 87,546.57, 120,809.31 and 51,739.91 is: 71,398.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,546.57 : 120,809.31 = 51,739.91 : x
  2. Step 2: Convert to fraction form
    87,546.57/120,809.31 = 51,739.91/x
  3. Step 3: Cross multiply
    87,546.57x = 120,809.31 × 51,739.91
  4. Step 4: Simplify right side
    87,546.57x = 6,250,663,597.63
  5. Step 5: Solve for x
    x = 6,250,663,597.63/87,546.57
  6. Step 6: Final answer
    x = 71,398.15

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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.