Home / 82,103.22-123,080.71-29,500.40

Finding the Fourth Proportional to 82,103.22, 123,080.71 and 29,500.40

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Solution

The fourth proportional to 82,103.22, 123,080.71 and 29,500.40 is: 44,223.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,103.22 : 123,080.71 = 29,500.40 : x
  2. Step 2: Convert to fraction form
    82,103.22/123,080.71 = 29,500.40/x
  3. Step 3: Cross multiply
    82,103.22x = 123,080.71 × 29,500.40
  4. Step 4: Simplify right side
    82,103.22x = 3,630,930,291.08
  5. Step 5: Solve for x
    x = 3,630,930,291.08/82,103.22
  6. Step 6: Final answer
    x = 44,223.97

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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.