Home / 71,135.12-98,052.45-48,157.70

Finding the Fourth Proportional to 71,135.12, 98,052.45 and 48,157.70

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Solution

The fourth proportional to 71,135.12, 98,052.45 and 48,157.70 is: 66,380.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,135.12 : 98,052.45 = 48,157.70 : x
  2. Step 2: Convert to fraction form
    71,135.12/98,052.45 = 48,157.70/x
  3. Step 3: Cross multiply
    71,135.12x = 98,052.45 × 48,157.70
  4. Step 4: Simplify right side
    71,135.12x = 4,721,980,211.73
  5. Step 5: Solve for x
    x = 4,721,980,211.73/71,135.12
  6. Step 6: Final answer
    x = 66,380.44

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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.