Home / 55,866.92-83,778.42-20,319.80

Finding the Fourth Proportional to 55,866.92, 83,778.42 and 20,319.80

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Solution

The fourth proportional to 55,866.92, 83,778.42 and 20,319.80 is: 30,471.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,866.92 : 83,778.42 = 20,319.80 : x
  2. Step 2: Convert to fraction form
    55,866.92/83,778.42 = 20,319.80/x
  3. Step 3: Cross multiply
    55,866.92x = 83,778.42 × 20,319.80
  4. Step 4: Simplify right side
    55,866.92x = 1,702,360,738.72
  5. Step 5: Solve for x
    x = 1,702,360,738.72/55,866.92
  6. Step 6: Final answer
    x = 30,471.71

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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.