Home / 78,521.20-108,359.04-44,065.96

Finding the Fourth Proportional to 78,521.20, 108,359.04 and 44,065.96

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Solution

The fourth proportional to 78,521.20, 108,359.04 and 44,065.96 is: 60,810.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,521.20 : 108,359.04 = 44,065.96 : x
  2. Step 2: Convert to fraction form
    78,521.20/108,359.04 = 44,065.96/x
  3. Step 3: Cross multiply
    78,521.20x = 108,359.04 × 44,065.96
  4. Step 4: Simplify right side
    78,521.20x = 4,774,945,122.28
  5. Step 5: Solve for x
    x = 4,774,945,122.28/78,521.20
  6. Step 6: Final answer
    x = 60,810.90

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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.