Home / 89,212.75-123,113.60-49,468.75

Finding the Fourth Proportional to 89,212.75, 123,113.60 and 49,468.75

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Solution

The fourth proportional to 89,212.75, 123,113.60 and 49,468.75 is: 68,266.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,212.75 : 123,113.60 = 49,468.75 : x
  2. Step 2: Convert to fraction form
    89,212.75/123,113.60 = 49,468.75/x
  3. Step 3: Cross multiply
    89,212.75x = 123,113.60 × 49,468.75
  4. Step 4: Simplify right side
    89,212.75x = 6,090,275,900
  5. Step 5: Solve for x
    x = 6,090,275,900/89,212.75
  6. Step 6: Final answer
    x = 68,266.88

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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.