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Finding the Fourth Proportional to 55,324.16, 76,325.68 and 31,119.52

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Solution

The fourth proportional to 55,324.16, 76,325.68 and 31,119.52 is: 42,932.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,324.16 : 76,325.68 = 31,119.52 : x
  2. Step 2: Convert to fraction form
    55,324.16/76,325.68 = 31,119.52/x
  3. Step 3: Cross multiply
    55,324.16x = 76,325.68 × 31,119.52
  4. Step 4: Simplify right side
    55,324.16x = 2,375,218,525.27
  5. Step 5: Solve for x
    x = 2,375,218,525.27/55,324.16
  6. Step 6: Final answer
    x = 42,932.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.