Home / 54,065.55-81,098.33-50,128.95

Finding the Fourth Proportional to 54,065.55, 81,098.33 and 50,128.95

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Solution

The fourth proportional to 54,065.55, 81,098.33 and 50,128.95 is: 75,193.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,065.55 : 81,098.33 = 50,128.95 : x
  2. Step 2: Convert to fraction form
    54,065.55/81,098.33 = 50,128.95/x
  3. Step 3: Cross multiply
    54,065.55x = 81,098.33 × 50,128.95
  4. Step 4: Simplify right side
    54,065.55x = 4,065,373,879.01
  5. Step 5: Solve for x
    x = 4,065,373,879.01/54,065.55
  6. Step 6: Final answer
    x = 75,193.43

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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.