Home / 49,403.78-74,105.31-41,990.66

Finding the Fourth Proportional to 49,403.78, 74,105.31 and 41,990.66

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Solution

The fourth proportional to 49,403.78, 74,105.31 and 41,990.66 is: 62,985.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,403.78 : 74,105.31 = 41,990.66 : x
  2. Step 2: Convert to fraction form
    49,403.78/74,105.31 = 41,990.66/x
  3. Step 3: Cross multiply
    49,403.78x = 74,105.31 × 41,990.66
  4. Step 4: Simplify right side
    49,403.78x = 3,111,730,876.40
  5. Step 5: Solve for x
    x = 3,111,730,876.40/49,403.78
  6. Step 6: Final answer
    x = 62,985.68

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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.