Home / 82,317.45-123,479.64-40,147.29

Finding the Fourth Proportional to 82,317.45, 123,479.64 and 40,147.29

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Solution

The fourth proportional to 82,317.45, 123,479.64 and 40,147.29 is: 60,222.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,317.45 : 123,479.64 = 40,147.29 : x
  2. Step 2: Convert to fraction form
    82,317.45/123,479.64 = 40,147.29/x
  3. Step 3: Cross multiply
    82,317.45x = 123,479.64 × 40,147.29
  4. Step 4: Simplify right side
    82,317.45x = 4,957,372,916.18
  5. Step 5: Solve for x
    x = 4,957,372,916.18/82,317.45
  6. Step 6: Final answer
    x = 60,222.62

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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.