Home / 78,929.40-108,912.74-44,942.28

Finding the Fourth Proportional to 78,929.40, 108,912.74 and 44,942.28

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Solution

The fourth proportional to 78,929.40, 108,912.74 and 44,942.28 is: 62,014.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,929.40 : 108,912.74 = 44,942.28 : x
  2. Step 2: Convert to fraction form
    78,929.40/108,912.74 = 44,942.28/x
  3. Step 3: Cross multiply
    78,929.40x = 108,912.74 × 44,942.28
  4. Step 4: Simplify right side
    78,929.40x = 4,894,786,856.65
  5. Step 5: Solve for x
    x = 4,894,786,856.65/78,929.40
  6. Step 6: Final answer
    x = 62,014.75

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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.