Home / 78,838.20-108,806.70-52,036.44

Finding the Fourth Proportional to 78,838.20, 108,806.70 and 52,036.44

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Solution

The fourth proportional to 78,838.20, 108,806.70 and 52,036.44 is: 71,816.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,838.20 : 108,806.70 = 52,036.44 : x
  2. Step 2: Convert to fraction form
    78,838.20/108,806.70 = 52,036.44/x
  3. Step 3: Cross multiply
    78,838.20x = 108,806.70 × 52,036.44
  4. Step 4: Simplify right side
    78,838.20x = 5,661,913,316.15
  5. Step 5: Solve for x
    x = 5,661,913,316.15/78,838.20
  6. Step 6: Final answer
    x = 71,816.88

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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.