Home / 82,431.68-123,560.94-52,468.86

Finding the Fourth Proportional to 82,431.68, 123,560.94 and 52,468.86

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Solution

The fourth proportional to 82,431.68, 123,560.94 and 52,468.86 is: 78,648.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,431.68 : 123,560.94 = 52,468.86 : x
  2. Step 2: Convert to fraction form
    82,431.68/123,560.94 = 52,468.86/x
  3. Step 3: Cross multiply
    82,431.68x = 123,560.94 × 52,468.86
  4. Step 4: Simplify right side
    82,431.68x = 6,483,102,322.44
  5. Step 5: Solve for x
    x = 6,483,102,322.44/82,431.68
  6. Step 6: Final answer
    x = 78,648.19

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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.