Home / 49,315.48-74,062.32-45,359.62

Finding the Fourth Proportional to 49,315.48, 74,062.32 and 45,359.62

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Solution

The fourth proportional to 49,315.48, 74,062.32 and 45,359.62 is: 68,121.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,315.48 : 74,062.32 = 45,359.62 : x
  2. Step 2: Convert to fraction form
    49,315.48/74,062.32 = 45,359.62/x
  3. Step 3: Cross multiply
    49,315.48x = 74,062.32 × 45,359.62
  4. Step 4: Simplify right side
    49,315.48x = 3,359,438,691.52
  5. Step 5: Solve for x
    x = 3,359,438,691.52/49,315.48
  6. Step 6: Final answer
    x = 68,121.38

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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.