Home / 80,793.04-121,001.44-77,990.44

Finding the Fourth Proportional to 80,793.04, 121,001.44 and 77,990.44

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Solution

The fourth proportional to 80,793.04, 121,001.44 and 77,990.44 is: 116,804.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,793.04 : 121,001.44 = 77,990.44 : x
  2. Step 2: Convert to fraction form
    80,793.04/121,001.44 = 77,990.44/x
  3. Step 3: Cross multiply
    80,793.04x = 121,001.44 × 77,990.44
  4. Step 4: Simplify right side
    80,793.04x = 9,436,955,546.23
  5. Step 5: Solve for x
    x = 9,436,955,546.23/80,793.04
  6. Step 6: Final answer
    x = 116,804.07

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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.