Home / 89,756.41-123,859.86-51,489.38

Finding the Fourth Proportional to 89,756.41, 123,859.86 and 51,489.38

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Solution

The fourth proportional to 89,756.41, 123,859.86 and 51,489.38 is: 71,053.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,756.41 : 123,859.86 = 51,489.38 : x
  2. Step 2: Convert to fraction form
    89,756.41/123,859.86 = 51,489.38/x
  3. Step 3: Cross multiply
    89,756.41x = 123,859.86 × 51,489.38
  4. Step 4: Simplify right side
    89,756.41x = 6,377,467,398.29
  5. Step 5: Solve for x
    x = 6,377,467,398.29/89,756.41
  6. Step 6: Final answer
    x = 71,053.06

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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.