Home / 74,747.31-103,152.09-40,755.51

Finding the Fourth Proportional to 74,747.31, 103,152.09 and 40,755.51

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Solution

The fourth proportional to 74,747.31, 103,152.09 and 40,755.51 is: 56,243.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,747.31 : 103,152.09 = 40,755.51 : x
  2. Step 2: Convert to fraction form
    74,747.31/103,152.09 = 40,755.51/x
  3. Step 3: Cross multiply
    74,747.31x = 103,152.09 × 40,755.51
  4. Step 4: Simplify right side
    74,747.31x = 4,204,016,035.52
  5. Step 5: Solve for x
    x = 4,204,016,035.52/74,747.31
  6. Step 6: Final answer
    x = 56,243.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.