Home / 89,819.16-123,949.80-49,534.56

Finding the Fourth Proportional to 89,819.16, 123,949.80 and 49,534.56

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Solution

The fourth proportional to 89,819.16, 123,949.80 and 49,534.56 is: 68,357.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,819.16 : 123,949.80 = 49,534.56 : x
  2. Step 2: Convert to fraction form
    89,819.16/123,949.80 = 49,534.56/x
  3. Step 3: Cross multiply
    89,819.16x = 123,949.80 × 49,534.56
  4. Step 4: Simplify right side
    89,819.16x = 6,139,798,805.09
  5. Step 5: Solve for x
    x = 6,139,798,805.09/89,819.16
  6. Step 6: Final answer
    x = 68,357.34

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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.