Home / 55,428.28-83,093.22-20,359.72

Finding the Fourth Proportional to 55,428.28, 83,093.22 and 20,359.72

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Solution

The fourth proportional to 55,428.28, 83,093.22 and 20,359.72 is: 30,521.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,428.28 : 83,093.22 = 20,359.72 : x
  2. Step 2: Convert to fraction form
    55,428.28/83,093.22 = 20,359.72/x
  3. Step 3: Cross multiply
    55,428.28x = 83,093.22 × 20,359.72
  4. Step 4: Simplify right side
    55,428.28x = 1,691,754,693.10
  5. Step 5: Solve for x
    x = 1,691,754,693.10/55,428.28
  6. Step 6: Final answer
    x = 30,521.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.