Home / 75,215.88-112,823.82-38,305.80

Finding the Fourth Proportional to 75,215.88, 112,823.82 and 38,305.80

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Solution

The fourth proportional to 75,215.88, 112,823.82 and 38,305.80 is: 57,458.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,215.88 : 112,823.82 = 38,305.80 : x
  2. Step 2: Convert to fraction form
    75,215.88/112,823.82 = 38,305.80/x
  3. Step 3: Cross multiply
    75,215.88x = 112,823.82 × 38,305.80
  4. Step 4: Simplify right side
    75,215.88x = 4,321,806,684.16
  5. Step 5: Solve for x
    x = 4,321,806,684.16/75,215.88
  6. Step 6: Final answer
    x = 57,458.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.