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Finding the Fourth Proportional to 78,356.38, 108,131.80 and 44,822.38

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Solution

The fourth proportional to 78,356.38, 108,131.80 and 44,822.38 is: 61,854.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,356.38 : 108,131.80 = 44,822.38 : x
  2. Step 2: Convert to fraction form
    78,356.38/108,131.80 = 44,822.38/x
  3. Step 3: Cross multiply
    78,356.38x = 108,131.80 × 44,822.38
  4. Step 4: Simplify right side
    78,356.38x = 4,846,724,089.03
  5. Step 5: Solve for x
    x = 4,846,724,089.03/78,356.38
  6. Step 6: Final answer
    x = 61,854.88

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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.