Home / 55,708.20-83,567.16-20,648.16

Finding the Fourth Proportional to 55,708.20, 83,567.16 and 20,648.16

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Solution

The fourth proportional to 55,708.20, 83,567.16 and 20,648.16 is: 30,974.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,708.20 : 83,567.16 = 20,648.16 : x
  2. Step 2: Convert to fraction form
    55,708.20/83,567.16 = 20,648.16/x
  3. Step 3: Cross multiply
    55,708.20x = 83,567.16 × 20,648.16
  4. Step 4: Simplify right side
    55,708.20x = 1,725,508,090.43
  5. Step 5: Solve for x
    x = 1,725,508,090.43/55,708.20
  6. Step 6: Final answer
    x = 30,974.04

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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.