Home / 55,278.53-76,286.41-31,409.25

Finding the Fourth Proportional to 55,278.53, 76,286.41 and 31,409.25

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Solution

The fourth proportional to 55,278.53, 76,286.41 and 31,409.25 is: 43,345.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,278.53 : 76,286.41 = 31,409.25 : x
  2. Step 2: Convert to fraction form
    55,278.53/76,286.41 = 31,409.25/x
  3. Step 3: Cross multiply
    55,278.53x = 76,286.41 × 31,409.25
  4. Step 4: Simplify right side
    55,278.53x = 2,396,098,923.29
  5. Step 5: Solve for x
    x = 2,396,098,923.29/55,278.53
  6. Step 6: Final answer
    x = 43,345.92

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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.