Home / 89,647.56-123,716.70-49,364.10

Finding the Fourth Proportional to 89,647.56, 123,716.70 and 49,364.10

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Solution

The fourth proportional to 89,647.56, 123,716.70 and 49,364.10 is: 68,124.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,647.56 : 123,716.70 = 49,364.10 : x
  2. Step 2: Convert to fraction form
    89,647.56/123,716.70 = 49,364.10/x
  3. Step 3: Cross multiply
    89,647.56x = 123,716.70 × 49,364.10
  4. Step 4: Simplify right side
    89,647.56x = 6,107,163,550.47
  5. Step 5: Solve for x
    x = 6,107,163,550.47/89,647.56
  6. Step 6: Final answer
    x = 68,124.15

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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.