Home / 82,319.45-123,482.64-40,149.29

Finding the Fourth Proportional to 82,319.45, 123,482.64 and 40,149.29

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Solution

The fourth proportional to 82,319.45, 123,482.64 and 40,149.29 is: 60,225.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,319.45 : 123,482.64 = 40,149.29 : x
  2. Step 2: Convert to fraction form
    82,319.45/123,482.64 = 40,149.29/x
  3. Step 3: Cross multiply
    82,319.45x = 123,482.64 × 40,149.29
  4. Step 4: Simplify right side
    82,319.45x = 4,957,740,323.33
  5. Step 5: Solve for x
    x = 4,957,740,323.33/82,319.45
  6. Step 6: Final answer
    x = 60,225.62

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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.