Home / 55,343.76-82,966.34-20,275.22

Finding the Fourth Proportional to 55,343.76, 82,966.34 and 20,275.22

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Solution

The fourth proportional to 55,343.76, 82,966.34 and 20,275.22 is: 30,394.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,343.76 : 82,966.34 = 20,275.22 : x
  2. Step 2: Convert to fraction form
    55,343.76/82,966.34 = 20,275.22/x
  3. Step 3: Cross multiply
    55,343.76x = 82,966.34 × 20,275.22
  4. Step 4: Simplify right side
    55,343.76x = 1,682,160,279.89
  5. Step 5: Solve for x
    x = 1,682,160,279.89/55,343.76
  6. Step 6: Final answer
    x = 30,394.76

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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.