Home / 89,370.90-123,324.12-51,122.70

Finding the Fourth Proportional to 89,370.90, 123,324.12 and 51,122.70

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Solution

The fourth proportional to 89,370.90, 123,324.12 and 51,122.70 is: 70,544.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,370.90 : 123,324.12 = 51,122.70 : x
  2. Step 2: Convert to fraction form
    89,370.90/123,324.12 = 51,122.70/x
  3. Step 3: Cross multiply
    89,370.90x = 123,324.12 × 51,122.70
  4. Step 4: Simplify right side
    89,370.90x = 6,304,661,989.52
  5. Step 5: Solve for x
    x = 6,304,661,989.52/89,370.90
  6. Step 6: Final answer
    x = 70,544.91

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1.5x scale

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.