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Finding the Fourth Proportional to 92,379.60, 138,569.40 and 33,217.20

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Solution

The fourth proportional to 92,379.60, 138,569.40 and 33,217.20 is: 49,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,379.60 : 138,569.40 = 33,217.20 : x
  2. Step 2: Convert to fraction form
    92,379.60/138,569.40 = 33,217.20/x
  3. Step 3: Cross multiply
    92,379.60x = 138,569.40 × 33,217.20
  4. Step 4: Simplify right side
    92,379.60x = 4,602,887,473.68
  5. Step 5: Solve for x
    x = 4,602,887,473.68/92,379.60
  6. Step 6: Final answer
    x = 49,825.80

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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.