Home / 87,220.40-120,357.29-49,494.65

Finding the Fourth Proportional to 87,220.40, 120,357.29 and 49,494.65

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Solution

The fourth proportional to 87,220.40, 120,357.29 and 49,494.65 is: 68,298.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,220.40 : 120,357.29 = 49,494.65 : x
  2. Step 2: Convert to fraction form
    87,220.40/120,357.29 = 49,494.65/x
  3. Step 3: Cross multiply
    87,220.40x = 120,357.29 × 49,494.65
  4. Step 4: Simplify right side
    87,220.40x = 5,957,041,465.45
  5. Step 5: Solve for x
    x = 5,957,041,465.45/87,220.40
  6. Step 6: Final answer
    x = 68,298.72

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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.