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Finding the Fourth Proportional to 78,832.57, 108,791.33 and 44,845.93

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Solution

The fourth proportional to 78,832.57, 108,791.33 and 44,845.93 is: 61,888.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,832.57 : 108,791.33 = 44,845.93 : x
  2. Step 2: Convert to fraction form
    78,832.57/108,791.33 = 44,845.93/x
  3. Step 3: Cross multiply
    78,832.57x = 108,791.33 × 44,845.93
  4. Step 4: Simplify right side
    78,832.57x = 4,878,847,873.58
  5. Step 5: Solve for x
    x = 4,878,847,873.58/78,832.57
  6. Step 6: Final answer
    x = 61,888.73

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Why These Related Problems?

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