Home / 71,647.06-98,872.22-39,815.28

Finding the Fourth Proportional to 71,647.06, 98,872.22 and 39,815.28

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Solution

The fourth proportional to 71,647.06, 98,872.22 and 39,815.28 is: 54,944.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,647.06 : 98,872.22 = 39,815.28 : x
  2. Step 2: Convert to fraction form
    71,647.06/98,872.22 = 39,815.28/x
  3. Step 3: Cross multiply
    71,647.06x = 98,872.22 × 39,815.28
  4. Step 4: Simplify right side
    71,647.06x = 3,936,625,123.52
  5. Step 5: Solve for x
    x = 3,936,625,123.52/71,647.06
  6. Step 6: Final answer
    x = 54,944.68

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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.