Home / 66,228.97-99,387.24-31,171.36

Finding the Fourth Proportional to 66,228.97, 99,387.24 and 31,171.36

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Solution

The fourth proportional to 66,228.97, 99,387.24 and 31,171.36 is: 46,777.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,228.97 : 99,387.24 = 31,171.36 : x
  2. Step 2: Convert to fraction form
    66,228.97/99,387.24 = 31,171.36/x
  3. Step 3: Cross multiply
    66,228.97x = 99,387.24 × 31,171.36
  4. Step 4: Simplify right side
    66,228.97x = 3,098,035,437.45
  5. Step 5: Solve for x
    x = 3,098,035,437.45/66,228.97
  6. Step 6: Final answer
    x = 46,777.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.