Home / 82,385.08-123,587.22-29,819.32

Finding the Fourth Proportional to 82,385.08, 123,587.22 and 29,819.32

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Solution

The fourth proportional to 82,385.08, 123,587.22 and 29,819.32 is: 44,732.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,385.08 : 123,587.22 = 29,819.32 : x
  2. Step 2: Convert to fraction form
    82,385.08/123,587.22 = 29,819.32/x
  3. Step 3: Cross multiply
    82,385.08x = 123,587.22 × 29,819.32
  4. Step 4: Simplify right side
    82,385.08x = 3,685,286,861.09
  5. Step 5: Solve for x
    x = 3,685,286,861.09/82,385.08
  6. Step 6: Final answer
    x = 44,732.45

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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.