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Finding the Fourth Proportional to 78,833.43, 108,599.61 and 67,466.49

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Solution

The fourth proportional to 78,833.43, 108,599.61 and 67,466.49 is: 92,940.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,833.43 : 108,599.61 = 67,466.49 : x
  2. Step 2: Convert to fraction form
    78,833.43/108,599.61 = 67,466.49/x
  3. Step 3: Cross multiply
    78,833.43x = 108,599.61 × 67,466.49
  4. Step 4: Simplify right side
    78,833.43x = 7,326,834,502.07
  5. Step 5: Solve for x
    x = 7,326,834,502.07/78,833.43
  6. Step 6: Final answer
    x = 92,940.70

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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.