Home / 54,480.80-75,170.30-31,806.88

Finding the Fourth Proportional to 54,480.80, 75,170.30 and 31,806.88

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Solution

The fourth proportional to 54,480.80, 75,170.30 and 31,806.88 is: 43,885.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,480.80 : 75,170.30 = 31,806.88 : x
  2. Step 2: Convert to fraction form
    54,480.80/75,170.30 = 31,806.88/x
  3. Step 3: Cross multiply
    54,480.80x = 75,170.30 × 31,806.88
  4. Step 4: Simplify right side
    54,480.80x = 2,390,932,364.70
  5. Step 5: Solve for x
    x = 2,390,932,364.70/54,480.80
  6. Step 6: Final answer
    x = 43,885.78

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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.