Home / 78,544.62-108,392.04-42,734.88

Finding the Fourth Proportional to 78,544.62, 108,392.04 and 42,734.88

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Solution

The fourth proportional to 78,544.62, 108,392.04 and 42,734.88 is: 58,974.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,544.62 : 108,392.04 = 42,734.88 : x
  2. Step 2: Convert to fraction form
    78,544.62/108,392.04 = 42,734.88/x
  3. Step 3: Cross multiply
    78,544.62x = 108,392.04 × 42,734.88
  4. Step 4: Simplify right side
    78,544.62x = 4,632,120,822.36
  5. Step 5: Solve for x
    x = 4,632,120,822.36/78,544.62
  6. Step 6: Final answer
    x = 58,974.39

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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.