Home / 89,619.39-123,660.27-51,371.91

Finding the Fourth Proportional to 89,619.39, 123,660.27 and 51,371.91

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Solution

The fourth proportional to 89,619.39, 123,660.27 and 51,371.91 is: 70,884.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,619.39 : 123,660.27 = 51,371.91 : x
  2. Step 2: Convert to fraction form
    89,619.39/123,660.27 = 51,371.91/x
  3. Step 3: Cross multiply
    89,619.39x = 123,660.27 × 51,371.91
  4. Step 4: Simplify right side
    89,619.39x = 6,352,664,261.02
  5. Step 5: Solve for x
    x = 6,352,664,261.02/89,619.39
  6. Step 6: Final answer
    x = 70,884.93

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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.