Home / 89,792.91-123,908.63-49,507.11

Finding the Fourth Proportional to 89,792.91, 123,908.63 and 49,507.11

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Solution

The fourth proportional to 89,792.91, 123,908.63 and 49,507.11 is: 68,316.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,792.91 : 123,908.63 = 49,507.11 : x
  2. Step 2: Convert to fraction form
    89,792.91/123,908.63 = 49,507.11/x
  3. Step 3: Cross multiply
    89,792.91x = 123,908.63 × 49,507.11
  4. Step 4: Simplify right side
    89,792.91x = 6,134,357,927.82
  5. Step 5: Solve for x
    x = 6,134,357,927.82/89,792.91
  6. Step 6: Final answer
    x = 68,316.73

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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.