Home / 82,408.05-123,612.08-29,805.23

Finding the Fourth Proportional to 82,408.05, 123,612.08 and 29,805.23

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Solution

The fourth proportional to 82,408.05, 123,612.08 and 29,805.23 is: 44,707.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,408.05 : 123,612.08 = 29,805.23 : x
  2. Step 2: Convert to fraction form
    82,408.05/123,612.08 = 29,805.23/x
  3. Step 3: Cross multiply
    82,408.05x = 123,612.08 × 29,805.23
  4. Step 4: Simplify right side
    82,408.05x = 3,684,286,635.18
  5. Step 5: Solve for x
    x = 3,684,286,635.18/82,408.05
  6. Step 6: Final answer
    x = 44,707.85

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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.