Home / 54,435.50-75,120.34-30,561.56

Finding the Fourth Proportional to 54,435.50, 75,120.34 and 30,561.56

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Solution

The fourth proportional to 54,435.50, 75,120.34 and 30,561.56 is: 42,174.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,435.50 : 75,120.34 = 30,561.56 : x
  2. Step 2: Convert to fraction form
    54,435.50/75,120.34 = 30,561.56/x
  3. Step 3: Cross multiply
    54,435.50x = 75,120.34 × 30,561.56
  4. Step 4: Simplify right side
    54,435.50x = 2,295,794,778.13
  5. Step 5: Solve for x
    x = 2,295,794,778.13/54,435.50
  6. Step 6: Final answer
    x = 42,174.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.