Home / 87,692.68-121,013.22-49,965.04

Finding the Fourth Proportional to 87,692.68, 121,013.22 and 49,965.04

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Solution

The fourth proportional to 87,692.68, 121,013.22 and 49,965.04 is: 68,950.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,692.68 : 121,013.22 = 49,965.04 : x
  2. Step 2: Convert to fraction form
    87,692.68/121,013.22 = 49,965.04/x
  3. Step 3: Cross multiply
    87,692.68x = 121,013.22 × 49,965.04
  4. Step 4: Simplify right side
    87,692.68x = 6,046,430,377.83
  5. Step 5: Solve for x
    x = 6,046,430,377.83/87,692.68
  6. Step 6: Final answer
    x = 68,950.23

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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.