Home / 74,634.87-103,003.41-55,739.19

Finding the Fourth Proportional to 74,634.87, 103,003.41 and 55,739.19

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Solution

The fourth proportional to 74,634.87, 103,003.41 and 55,739.19 is: 76,925.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,634.87 : 103,003.41 = 55,739.19 : x
  2. Step 2: Convert to fraction form
    74,634.87/103,003.41 = 55,739.19/x
  3. Step 3: Cross multiply
    74,634.87x = 103,003.41 × 55,739.19
  4. Step 4: Simplify right side
    74,634.87x = 5,741,326,640.64
  5. Step 5: Solve for x
    x = 5,741,326,640.64/74,634.87
  6. Step 6: Final answer
    x = 76,925.53

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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.