Home / 55,613.12-83,452.16-20,577.28

Finding the Fourth Proportional to 55,613.12, 83,452.16 and 20,577.28

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Solution

The fourth proportional to 55,613.12, 83,452.16 and 20,577.28 is: 30,877.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,613.12 : 83,452.16 = 20,577.28 : x
  2. Step 2: Convert to fraction form
    55,613.12/83,452.16 = 20,577.28/x
  3. Step 3: Cross multiply
    55,613.12x = 83,452.16 × 20,577.28
  4. Step 4: Simplify right side
    55,613.12x = 1,717,218,462.92
  5. Step 5: Solve for x
    x = 1,717,218,462.92/55,613.12
  6. Step 6: Final answer
    x = 30,877.94

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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.