Home / 55,757.55-83,608.65-20,217.45

Finding the Fourth Proportional to 55,757.55, 83,608.65 and 20,217.45

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Solution

The fourth proportional to 55,757.55, 83,608.65 and 20,217.45 is: 30,316.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,757.55 : 83,608.65 = 20,217.45 : x
  2. Step 2: Convert to fraction form
    55,757.55/83,608.65 = 20,217.45/x
  3. Step 3: Cross multiply
    55,757.55x = 83,608.65 × 20,217.45
  4. Step 4: Simplify right side
    55,757.55x = 1,690,353,700.94
  5. Step 5: Solve for x
    x = 1,690,353,700.94/55,757.55
  6. Step 6: Final answer
    x = 30,316.14

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1.5x scale

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.