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Finding the Fourth Proportional to 92,572.80, 138,902.40 and 48,249.60

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Solution

The fourth proportional to 92,572.80, 138,902.40 and 48,249.60 is: 72,396.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,572.80 : 138,902.40 = 48,249.60 : x
  2. Step 2: Convert to fraction form
    92,572.80/138,902.40 = 48,249.60/x
  3. Step 3: Cross multiply
    92,572.80x = 138,902.40 × 48,249.60
  4. Step 4: Simplify right side
    92,572.80x = 6,701,985,239.04
  5. Step 5: Solve for x
    x = 6,701,985,239.04/92,572.80
  6. Step 6: Final answer
    x = 72,396.92

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.