Home / 66,630.12-99,972.87-29,170.90

Finding the Fourth Proportional to 66,630.12, 99,972.87 and 29,170.90

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Solution

The fourth proportional to 66,630.12, 99,972.87 and 29,170.90 is: 43,768.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,630.12 : 99,972.87 = 29,170.90 : x
  2. Step 2: Convert to fraction form
    66,630.12/99,972.87 = 29,170.90/x
  3. Step 3: Cross multiply
    66,630.12x = 99,972.87 × 29,170.90
  4. Step 4: Simplify right side
    66,630.12x = 2,916,298,593.48
  5. Step 5: Solve for x
    x = 2,916,298,593.48/66,630.12
  6. Step 6: Final answer
    x = 43,768.47

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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.