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Finding the Fourth Proportional to 70,142.55, 96,796.08 and 38,311.44

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Solution

The fourth proportional to 70,142.55, 96,796.08 and 38,311.44 is: 52,869.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,142.55 : 96,796.08 = 38,311.44 : x
  2. Step 2: Convert to fraction form
    70,142.55/96,796.08 = 38,311.44/x
  3. Step 3: Cross multiply
    70,142.55x = 96,796.08 × 38,311.44
  4. Step 4: Simplify right side
    70,142.55x = 3,708,397,211.16
  5. Step 5: Solve for x
    x = 3,708,397,211.16/70,142.55
  6. Step 6: Final answer
    x = 52,869.44

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.