Home / 78,867.14-108,836.54-50,572.76

Finding the Fourth Proportional to 78,867.14, 108,836.54 and 50,572.76

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Solution

The fourth proportional to 78,867.14, 108,836.54 and 50,572.76 is: 69,790.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,867.14 : 108,836.54 = 50,572.76 : x
  2. Step 2: Convert to fraction form
    78,867.14/108,836.54 = 50,572.76/x
  3. Step 3: Cross multiply
    78,867.14x = 108,836.54 × 50,572.76
  4. Step 4: Simplify right side
    78,867.14x = 5,504,164,216.65
  5. Step 5: Solve for x
    x = 5,504,164,216.65/78,867.14
  6. Step 6: Final answer
    x = 69,790.34

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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.