Home / 78,957.24-108,972.10-50,267.73

Finding the Fourth Proportional to 78,957.24, 108,972.10 and 50,267.73

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Solution

The fourth proportional to 78,957.24, 108,972.10 and 50,267.73 is: 69,376.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,957.24 : 108,972.10 = 50,267.73 : x
  2. Step 2: Convert to fraction form
    78,957.24/108,972.10 = 50,267.73/x
  3. Step 3: Cross multiply
    78,957.24x = 108,972.10 × 50,267.73
  4. Step 4: Simplify right side
    78,957.24x = 5,477,780,100.33
  5. Step 5: Solve for x
    x = 5,477,780,100.33/78,957.24
  6. Step 6: Final answer
    x = 69,376.54

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1.5x scale

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.