Home / 82,408.78-123,572.22-26,241.56

Finding the Fourth Proportional to 82,408.78, 123,572.22 and 26,241.56

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Solution

The fourth proportional to 82,408.78, 123,572.22 and 26,241.56 is: 39,349.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,408.78 : 123,572.22 = 26,241.56 : x
  2. Step 2: Convert to fraction form
    82,408.78/123,572.22 = 26,241.56/x
  3. Step 3: Cross multiply
    82,408.78x = 123,572.22 × 26,241.56
  4. Step 4: Simplify right side
    82,408.78x = 3,242,727,825.46
  5. Step 5: Solve for x
    x = 3,242,727,825.46/82,408.78
  6. Step 6: Final answer
    x = 39,349.30

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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.