Home / 87,285.09-120,463.70-49,044.72

Finding the Fourth Proportional to 87,285.09, 120,463.70 and 49,044.72

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Solution

The fourth proportional to 87,285.09, 120,463.70 and 49,044.72 is: 67,687.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,285.09 : 120,463.70 = 49,044.72 : x
  2. Step 2: Convert to fraction form
    87,285.09/120,463.70 = 49,044.72/x
  3. Step 3: Cross multiply
    87,285.09x = 120,463.70 × 49,044.72
  4. Step 4: Simplify right side
    87,285.09x = 5,908,108,436.66
  5. Step 5: Solve for x
    x = 5,908,108,436.66/87,285.09
  6. Step 6: Final answer
    x = 67,687.49

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1.5x scale

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.