Home / 89,653.18-123,720.30-49,366.12

Finding the Fourth Proportional to 89,653.18, 123,720.30 and 49,366.12

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Solution

The fourth proportional to 89,653.18, 123,720.30 and 49,366.12 is: 68,124.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,653.18 : 123,720.30 = 49,366.12 : x
  2. Step 2: Convert to fraction form
    89,653.18/123,720.30 = 49,366.12/x
  3. Step 3: Cross multiply
    89,653.18x = 123,720.30 × 49,366.12
  4. Step 4: Simplify right side
    89,653.18x = 6,107,591,176.24
  5. Step 5: Solve for x
    x = 6,107,591,176.24/89,653.18
  6. Step 6: Final answer
    x = 68,124.65

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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.