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Finding the Fourth Proportional to 78,850.93, 108,811.24 and 43,040.93

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Solution

The fourth proportional to 78,850.93, 108,811.24 and 43,040.93 is: 59,394.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,850.93 : 108,811.24 = 43,040.93 : x
  2. Step 2: Convert to fraction form
    78,850.93/108,811.24 = 43,040.93/x
  3. Step 3: Cross multiply
    78,850.93x = 108,811.24 × 43,040.93
  4. Step 4: Simplify right side
    78,850.93x = 4,683,336,964.05
  5. Step 5: Solve for x
    x = 4,683,336,964.05/78,850.93
  6. Step 6: Final answer
    x = 59,394.82

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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.