Home / 55,218.20-82,778.70-33,040.40

Finding the Fourth Proportional to 55,218.20, 82,778.70 and 33,040.40

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Solution

The fourth proportional to 55,218.20, 82,778.70 and 33,040.40 is: 49,531.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,218.20 : 82,778.70 = 33,040.40 : x
  2. Step 2: Convert to fraction form
    55,218.20/82,778.70 = 33,040.40/x
  3. Step 3: Cross multiply
    55,218.20x = 82,778.70 × 33,040.40
  4. Step 4: Simplify right side
    55,218.20x = 2,735,041,359.48
  5. Step 5: Solve for x
    x = 2,735,041,359.48/55,218.20
  6. Step 6: Final answer
    x = 49,531.52

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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.