Home / 99,849.60-137,796.84-57,422.16

Finding the Fourth Proportional to 99,849.60, 137,796.84 and 57,422.16

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Solution

The fourth proportional to 99,849.60, 137,796.84 and 57,422.16 is: 79,245.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,849.60 : 137,796.84 = 57,422.16 : x
  2. Step 2: Convert to fraction form
    99,849.60/137,796.84 = 57,422.16/x
  3. Step 3: Cross multiply
    99,849.60x = 137,796.84 × 57,422.16
  4. Step 4: Simplify right side
    99,849.60x = 7,912,592,193.97
  5. Step 5: Solve for x
    x = 7,912,592,193.97/99,849.60
  6. Step 6: Final answer
    x = 79,245.11

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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.