Home / 87,220.80-120,365.28-49,495.68

Finding the Fourth Proportional to 87,220.80, 120,365.28 and 49,495.68

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Solution

The fourth proportional to 87,220.80, 120,365.28 and 49,495.68 is: 68,304.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,220.80 : 120,365.28 = 49,495.68 : x
  2. Step 2: Convert to fraction form
    87,220.80/120,365.28 = 49,495.68/x
  3. Step 3: Cross multiply
    87,220.80x = 120,365.28 × 49,495.68
  4. Step 4: Simplify right side
    87,220.80x = 5,957,561,381.99
  5. Step 5: Solve for x
    x = 5,957,561,381.99/87,220.80
  6. Step 6: Final answer
    x = 68,304.37

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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.