Home / 55,609.12-83,446.44-20,573.20

Finding the Fourth Proportional to 55,609.12, 83,446.44 and 20,573.20

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Solution

The fourth proportional to 55,609.12, 83,446.44 and 20,573.20 is: 30,871.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,609.12 : 83,446.44 = 20,573.20 : x
  2. Step 2: Convert to fraction form
    55,609.12/83,446.44 = 20,573.20/x
  3. Step 3: Cross multiply
    55,609.12x = 83,446.44 × 20,573.20
  4. Step 4: Simplify right side
    55,609.12x = 1,716,760,299.41
  5. Step 5: Solve for x
    x = 1,716,760,299.41/55,609.12
  6. Step 6: Final answer
    x = 30,871.92

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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.