Home / 78,060.84-117,103.46-25,458.09

Finding the Fourth Proportional to 78,060.84, 117,103.46 and 25,458.09

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Solution

The fourth proportional to 78,060.84, 117,103.46 and 25,458.09 is: 38,191.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,060.84 : 117,103.46 = 25,458.09 : x
  2. Step 2: Convert to fraction form
    78,060.84/117,103.46 = 25,458.09/x
  3. Step 3: Cross multiply
    78,060.84x = 117,103.46 × 25,458.09
  4. Step 4: Simplify right side
    78,060.84x = 2,981,230,296.70
  5. Step 5: Solve for x
    x = 2,981,230,296.70/78,060.84
  6. Step 6: Final answer
    x = 38,191.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.