Home / 74,845.32-103,286.51-51,013.61

Finding the Fourth Proportional to 74,845.32, 103,286.51 and 51,013.61

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Solution

The fourth proportional to 74,845.32, 103,286.51 and 51,013.61 is: 70,398.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,845.32 : 103,286.51 = 51,013.61 : x
  2. Step 2: Convert to fraction form
    74,845.32/103,286.51 = 51,013.61/x
  3. Step 3: Cross multiply
    74,845.32x = 103,286.51 × 51,013.61
  4. Step 4: Simplify right side
    74,845.32x = 5,269,017,739.40
  5. Step 5: Solve for x
    x = 5,269,017,739.40/74,845.32
  6. Step 6: Final answer
    x = 70,398.76

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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.