Home / 66,125.28-99,205.20-29,215.20

Finding the Fourth Proportional to 66,125.28, 99,205.20 and 29,215.20

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Solution

The fourth proportional to 66,125.28, 99,205.20 and 29,215.20 is: 43,830.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,125.28 : 99,205.20 = 29,215.20 : x
  2. Step 2: Convert to fraction form
    66,125.28/99,205.20 = 29,215.20/x
  3. Step 3: Cross multiply
    66,125.28x = 99,205.20 × 29,215.20
  4. Step 4: Simplify right side
    66,125.28x = 2,898,299,759.04
  5. Step 5: Solve for x
    x = 2,898,299,759.04/66,125.28
  6. Step 6: Final answer
    x = 43,830.43

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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.