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Finding the Fourth Proportional to 89,767.66, 123,886.51 and 49,488.62

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Solution

The fourth proportional to 89,767.66, 123,886.51 and 49,488.62 is: 68,298.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,767.66 : 123,886.51 = 49,488.62 : x
  2. Step 2: Convert to fraction form
    89,767.66/123,886.51 = 49,488.62/x
  3. Step 3: Cross multiply
    89,767.66x = 123,886.51 × 49,488.62
  4. Step 4: Simplify right side
    89,767.66x = 6,130,972,416.52
  5. Step 5: Solve for x
    x = 6,130,972,416.52/89,767.66
  6. Step 6: Final answer
    x = 68,298.23

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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.