Home / 89,532.82-123,555.21-51,304.78

Finding the Fourth Proportional to 89,532.82, 123,555.21 and 51,304.78

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Solution

The fourth proportional to 89,532.82, 123,555.21 and 51,304.78 is: 70,800.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,532.82 : 123,555.21 = 51,304.78 : x
  2. Step 2: Convert to fraction form
    89,532.82/123,555.21 = 51,304.78/x
  3. Step 3: Cross multiply
    89,532.82x = 123,555.21 × 51,304.78
  4. Step 4: Simplify right side
    89,532.82x = 6,338,972,866.90
  5. Step 5: Solve for x
    x = 6,338,972,866.90/89,532.82
  6. Step 6: Final answer
    x = 70,800.55

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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.