Home / 89,033.68-122,872.40-51,310.36

Finding the Fourth Proportional to 89,033.68, 122,872.40 and 51,310.36

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Solution

The fourth proportional to 89,033.68, 122,872.40 and 51,310.36 is: 70,811.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,033.68 : 122,872.40 = 51,310.36 : x
  2. Step 2: Convert to fraction form
    89,033.68/122,872.40 = 51,310.36/x
  3. Step 3: Cross multiply
    89,033.68x = 122,872.40 × 51,310.36
  4. Step 4: Simplify right side
    89,033.68x = 6,304,627,078.06
  5. Step 5: Solve for x
    x = 6,304,627,078.06/89,033.68
  6. Step 6: Final answer
    x = 70,811.71

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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.