Home / 78,694.11-108,594.71-42,883.35

Finding the Fourth Proportional to 78,694.11, 108,594.71 and 42,883.35

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Solution

The fourth proportional to 78,694.11, 108,594.71 and 42,883.35 is: 59,177.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,694.11 : 108,594.71 = 42,883.35 : x
  2. Step 2: Convert to fraction form
    78,694.11/108,594.71 = 42,883.35/x
  3. Step 3: Cross multiply
    78,694.11x = 108,594.71 × 42,883.35
  4. Step 4: Simplify right side
    78,694.11x = 4,656,904,957.08
  5. Step 5: Solve for x
    x = 4,656,904,957.08/78,694.11
  6. Step 6: Final answer
    x = 59,177.30

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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.