Home / 89,266.74-123,187.41-51,561.78

Finding the Fourth Proportional to 89,266.74, 123,187.41 and 51,561.78

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Solution

The fourth proportional to 89,266.74, 123,187.41 and 51,561.78 is: 71,154.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,266.74 : 123,187.41 = 51,561.78 : x
  2. Step 2: Convert to fraction form
    89,266.74/123,187.41 = 51,561.78/x
  3. Step 3: Cross multiply
    89,266.74x = 123,187.41 × 51,561.78
  4. Step 4: Simplify right side
    89,266.74x = 6,351,762,133.19
  5. Step 5: Solve for x
    x = 6,351,762,133.19/89,266.74
  6. Step 6: Final answer
    x = 71,154.86

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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.