Home / 88,515-122,151.92-50,789.25

Finding the Fourth Proportional to 88,515, 122,151.92 and 50,789.25

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Solution

The fourth proportional to 88,515, 122,151.92 and 50,789.25 is: 70,089.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,515 : 122,151.92 = 50,789.25 : x
  2. Step 2: Convert to fraction form
    88,515/122,151.92 = 50,789.25/x
  3. Step 3: Cross multiply
    88,515x = 122,151.92 × 50,789.25
  4. Step 4: Simplify right side
    88,515x = 6,204,004,148.91
  5. Step 5: Solve for x
    x = 6,204,004,148.91/88,515
  6. Step 6: Final answer
    x = 70,089.86

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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.