Home / 75,178.55-112,456.17-57,273.74

Finding the Fourth Proportional to 75,178.55, 112,456.17 and 57,273.74

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Solution

The fourth proportional to 75,178.55, 112,456.17 and 57,273.74 is: 85,673.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,178.55 : 112,456.17 = 57,273.74 : x
  2. Step 2: Convert to fraction form
    75,178.55/112,456.17 = 57,273.74/x
  3. Step 3: Cross multiply
    75,178.55x = 112,456.17 × 57,273.74
  4. Step 4: Simplify right side
    75,178.55x = 6,440,785,408.95
  5. Step 5: Solve for x
    x = 6,440,785,408.95/75,178.55
  6. Step 6: Final answer
    x = 85,673.18

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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.