Home / 55,148.38-82,731.67-21,868.61

Finding the Fourth Proportional to 55,148.38, 82,731.67 and 21,868.61

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Solution

The fourth proportional to 55,148.38, 82,731.67 and 21,868.61 is: 32,806.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,148.38 : 82,731.67 = 21,868.61 : x
  2. Step 2: Convert to fraction form
    55,148.38/82,731.67 = 21,868.61/x
  3. Step 3: Cross multiply
    55,148.38x = 82,731.67 × 21,868.61
  4. Step 4: Simplify right side
    55,148.38x = 1,809,226,157.55
  5. Step 5: Solve for x
    x = 1,809,226,157.55/55,148.38
  6. Step 6: Final answer
    x = 32,806.52

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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.