Home / 78,546.41-108,394.49-42,736.66

Finding the Fourth Proportional to 78,546.41, 108,394.49 and 42,736.66

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Solution

The fourth proportional to 78,546.41, 108,394.49 and 42,736.66 is: 58,976.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,546.41 : 108,394.49 = 42,736.66 : x
  2. Step 2: Convert to fraction form
    78,546.41/108,394.49 = 42,736.66/x
  3. Step 3: Cross multiply
    78,546.41x = 108,394.49 × 42,736.66
  4. Step 4: Simplify right side
    78,546.41x = 4,632,418,465.00
  5. Step 5: Solve for x
    x = 4,632,418,465.00/78,546.41
  6. Step 6: Final answer
    x = 58,976.83

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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.