Home / 89,249.16-123,162.68-51,008.36

Finding the Fourth Proportional to 89,249.16, 123,162.68 and 51,008.36

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Solution

The fourth proportional to 89,249.16, 123,162.68 and 51,008.36 is: 70,390.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,249.16 : 123,162.68 = 51,008.36 : x
  2. Step 2: Convert to fraction form
    89,249.16/123,162.68 = 51,008.36/x
  3. Step 3: Cross multiply
    89,249.16x = 123,162.68 × 51,008.36
  4. Step 4: Simplify right side
    89,249.16x = 6,282,326,320.00
  5. Step 5: Solve for x
    x = 6,282,326,320.00/89,249.16
  6. Step 6: Final answer
    x = 70,390.87

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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.