Home / 78,815.30-108,766.68-43,006.28

Finding the Fourth Proportional to 78,815.30, 108,766.68 and 43,006.28

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Solution

The fourth proportional to 78,815.30, 108,766.68 and 43,006.28 is: 59,349.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,815.30 : 108,766.68 = 43,006.28 : x
  2. Step 2: Convert to fraction form
    78,815.30/108,766.68 = 43,006.28/x
  3. Step 3: Cross multiply
    78,815.30x = 108,766.68 × 43,006.28
  4. Step 4: Simplify right side
    78,815.30x = 4,677,650,294.75
  5. Step 5: Solve for x
    x = 4,677,650,294.75/78,815.30
  6. Step 6: Final answer
    x = 59,349.52

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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.