Home / 89,718.39-123,809.76-49,435.88

Finding the Fourth Proportional to 89,718.39, 123,809.76 and 49,435.88

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Solution

The fourth proportional to 89,718.39, 123,809.76 and 49,435.88 is: 68,220.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,718.39 : 123,809.76 = 49,435.88 : x
  2. Step 2: Convert to fraction form
    89,718.39/123,809.76 = 49,435.88/x
  3. Step 3: Cross multiply
    89,718.39x = 123,809.76 × 49,435.88
  4. Step 4: Simplify right side
    89,718.39x = 6,120,643,819.14
  5. Step 5: Solve for x
    x = 6,120,643,819.14/89,718.39
  6. Step 6: Final answer
    x = 68,220.62

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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.