Home / 75,123.43-112,688.79-61,951.75

Finding the Fourth Proportional to 75,123.43, 112,688.79 and 61,951.75

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Solution

The fourth proportional to 75,123.43, 112,688.79 and 61,951.75 is: 92,930.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,123.43 : 112,688.79 = 61,951.75 : x
  2. Step 2: Convert to fraction form
    75,123.43/112,688.79 = 61,951.75/x
  3. Step 3: Cross multiply
    75,123.43x = 112,688.79 × 61,951.75
  4. Step 4: Simplify right side
    75,123.43x = 6,981,267,745.88
  5. Step 5: Solve for x
    x = 6,981,267,745.88/75,123.43
  6. Step 6: Final answer
    x = 92,930.63

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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.