Home / 89,726.81-123,876.14-79,763.27

Finding the Fourth Proportional to 89,726.81, 123,876.14 and 79,763.27

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Solution

The fourth proportional to 89,726.81, 123,876.14 and 79,763.27 is: 110,120.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,726.81 : 123,876.14 = 79,763.27 : x
  2. Step 2: Convert to fraction form
    89,726.81/123,876.14 = 79,763.27/x
  3. Step 3: Cross multiply
    89,726.81x = 123,876.14 × 79,763.27
  4. Step 4: Simplify right side
    89,726.81x = 9,880,764,983.18
  5. Step 5: Solve for x
    x = 9,880,764,983.18/89,726.81
  6. Step 6: Final answer
    x = 110,120.55

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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.