Home / 87,470.30-120,705.54-51,671.82

Finding the Fourth Proportional to 87,470.30, 120,705.54 and 51,671.82

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Solution

The fourth proportional to 87,470.30, 120,705.54 and 51,671.82 is: 71,305.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,470.30 : 120,705.54 = 51,671.82 : x
  2. Step 2: Convert to fraction form
    87,470.30/120,705.54 = 51,671.82/x
  3. Step 3: Cross multiply
    87,470.30x = 120,705.54 × 51,671.82
  4. Step 4: Simplify right side
    87,470.30x = 6,237,074,935.88
  5. Step 5: Solve for x
    x = 6,237,074,935.88/87,470.30
  6. Step 6: Final answer
    x = 71,305.06

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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.