Home / 55,427.85-83,149.97-20,364.78

Finding the Fourth Proportional to 55,427.85, 83,149.97 and 20,364.78

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Solution

The fourth proportional to 55,427.85, 83,149.97 and 20,364.78 is: 30,550.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,427.85 : 83,149.97 = 20,364.78 : x
  2. Step 2: Convert to fraction form
    55,427.85/83,149.97 = 20,364.78/x
  3. Step 3: Cross multiply
    55,427.85x = 83,149.97 × 20,364.78
  4. Step 4: Simplify right side
    55,427.85x = 1,693,330,846.06
  5. Step 5: Solve for x
    x = 1,693,330,846.06/55,427.85
  6. Step 6: Final answer
    x = 30,550.18

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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.