Home / 74,977.48-103,479.06-43,145.56

Finding the Fourth Proportional to 74,977.48, 103,479.06 and 43,145.56

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Solution

The fourth proportional to 74,977.48, 103,479.06 and 43,145.56 is: 59,546.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,977.48 : 103,479.06 = 43,145.56 : x
  2. Step 2: Convert to fraction form
    74,977.48/103,479.06 = 43,145.56/x
  3. Step 3: Cross multiply
    74,977.48x = 103,479.06 × 43,145.56
  4. Step 4: Simplify right side
    74,977.48x = 4,464,661,991.97
  5. Step 5: Solve for x
    x = 4,464,661,991.97/74,977.48
  6. Step 6: Final answer
    x = 59,546.71

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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.