Home / 66,487.08-99,660.56-22,101.90

Finding the Fourth Proportional to 66,487.08, 99,660.56 and 22,101.90

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Solution

The fourth proportional to 66,487.08, 99,660.56 and 22,101.90 is: 33,129.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,487.08 : 99,660.56 = 22,101.90 : x
  2. Step 2: Convert to fraction form
    66,487.08/99,660.56 = 22,101.90/x
  3. Step 3: Cross multiply
    66,487.08x = 99,660.56 × 22,101.90
  4. Step 4: Simplify right side
    66,487.08x = 2,202,687,731.06
  5. Step 5: Solve for x
    x = 2,202,687,731.06/66,487.08
  6. Step 6: Final answer
    x = 33,129.56

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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.