Home / 82,415.39-123,622.97-29,812.55

Finding the Fourth Proportional to 82,415.39, 123,622.97 and 29,812.55

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Solution

The fourth proportional to 82,415.39, 123,622.97 and 29,812.55 is: 44,718.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,415.39 : 123,622.97 = 29,812.55 : x
  2. Step 2: Convert to fraction form
    82,415.39/123,622.97 = 29,812.55/x
  3. Step 3: Cross multiply
    82,415.39x = 123,622.97 × 29,812.55
  4. Step 4: Simplify right side
    82,415.39x = 3,685,515,207.10
  5. Step 5: Solve for x
    x = 3,685,515,207.10/82,415.39
  6. Step 6: Final answer
    x = 44,718.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.