Home / 55,046.40-75,965.82-31,172.56

Finding the Fourth Proportional to 55,046.40, 75,965.82 and 31,172.56

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Solution

The fourth proportional to 55,046.40, 75,965.82 and 31,172.56 is: 43,019.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,046.40 : 75,965.82 = 31,172.56 : x
  2. Step 2: Convert to fraction form
    55,046.40/75,965.82 = 31,172.56/x
  3. Step 3: Cross multiply
    55,046.40x = 75,965.82 × 31,172.56
  4. Step 4: Simplify right side
    55,046.40x = 2,368,048,546.21
  5. Step 5: Solve for x
    x = 2,368,048,546.21/55,046.40
  6. Step 6: Final answer
    x = 43,019.14

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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.