Home / 98,390.40-135,766.29-55,949.85

Finding the Fourth Proportional to 98,390.40, 135,766.29 and 55,949.85

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Solution

The fourth proportional to 98,390.40, 135,766.29 and 55,949.85 is: 77,203.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,390.40 : 135,766.29 = 55,949.85 : x
  2. Step 2: Convert to fraction form
    98,390.40/135,766.29 = 55,949.85/x
  3. Step 3: Cross multiply
    98,390.40x = 135,766.29 × 55,949.85
  4. Step 4: Simplify right side
    98,390.40x = 7,596,103,560.56
  5. Step 5: Solve for x
    x = 7,596,103,560.56/98,390.40
  6. Step 6: Final answer
    x = 77,203.71

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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.