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Finding the Fourth Proportional to 88,277, 121,823.04 and 47,990.84

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Solution

The fourth proportional to 88,277, 121,823.04 and 47,990.84 is: 66,227.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,277 : 121,823.04 = 47,990.84 : x
  2. Step 2: Convert to fraction form
    88,277/121,823.04 = 47,990.84/x
  3. Step 3: Cross multiply
    88,277x = 121,823.04 × 47,990.84
  4. Step 4: Simplify right side
    88,277x = 5,846,390,020.95
  5. Step 5: Solve for x
    x = 5,846,390,020.95/88,277
  6. Step 6: Final answer
    x = 66,227.78

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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.