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Finding the Fourth Proportional to 72,349.30, 99,817.04 and 45,493.85

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Solution

The fourth proportional to 72,349.30, 99,817.04 and 45,493.85 is: 62,765.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,349.30 : 99,817.04 = 45,493.85 : x
  2. Step 2: Convert to fraction form
    72,349.30/99,817.04 = 45,493.85/x
  3. Step 3: Cross multiply
    72,349.30x = 99,817.04 × 45,493.85
  4. Step 4: Simplify right side
    72,349.30x = 4,541,060,946.12
  5. Step 5: Solve for x
    x = 4,541,060,946.12/72,349.30
  6. Step 6: Final answer
    x = 62,765.79

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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.