Home / 78,826.74-108,596.07-54,910.14

Finding the Fourth Proportional to 78,826.74, 108,596.07 and 54,910.14

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Solution

The fourth proportional to 78,826.74, 108,596.07 and 54,910.14 is: 75,647.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,826.74 : 108,596.07 = 54,910.14 : x
  2. Step 2: Convert to fraction form
    78,826.74/108,596.07 = 54,910.14/x
  3. Step 3: Cross multiply
    78,826.74x = 108,596.07 × 54,910.14
  4. Step 4: Simplify right side
    78,826.74x = 5,963,025,407.15
  5. Step 5: Solve for x
    x = 5,963,025,407.15/78,826.74
  6. Step 6: Final answer
    x = 75,647.24

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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.