Home / 89,618.61-123,659.22-51,371.13

Finding the Fourth Proportional to 89,618.61, 123,659.22 and 51,371.13

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Solution

The fourth proportional to 89,618.61, 123,659.22 and 51,371.13 is: 70,883.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,618.61 : 123,659.22 = 51,371.13 : x
  2. Step 2: Convert to fraction form
    89,618.61/123,659.22 = 51,371.13/x
  3. Step 3: Cross multiply
    89,618.61x = 123,659.22 × 51,371.13
  4. Step 4: Simplify right side
    89,618.61x = 6,352,513,866.32
  5. Step 5: Solve for x
    x = 6,352,513,866.32/89,618.61
  6. Step 6: Final answer
    x = 70,883.87

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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.