Home / 78,456.15-108,294.26-50,161.95

Finding the Fourth Proportional to 78,456.15, 108,294.26 and 50,161.95

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Solution

The fourth proportional to 78,456.15, 108,294.26 and 50,161.95 is: 69,239.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,456.15 : 108,294.26 = 50,161.95 : x
  2. Step 2: Convert to fraction form
    78,456.15/108,294.26 = 50,161.95/x
  3. Step 3: Cross multiply
    78,456.15x = 108,294.26 × 50,161.95
  4. Step 4: Simplify right side
    78,456.15x = 5,432,251,004.60
  5. Step 5: Solve for x
    x = 5,432,251,004.60/78,456.15
  6. Step 6: Final answer
    x = 69,239.33

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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.