Home / 54,781.20-75,597.72-30,580.75

Finding the Fourth Proportional to 54,781.20, 75,597.72 and 30,580.75

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Solution

The fourth proportional to 54,781.20, 75,597.72 and 30,580.75 is: 42,201.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,781.20 : 75,597.72 = 30,580.75 : x
  2. Step 2: Convert to fraction form
    54,781.20/75,597.72 = 30,580.75/x
  3. Step 3: Cross multiply
    54,781.20x = 75,597.72 × 30,580.75
  4. Step 4: Simplify right side
    54,781.20x = 2,311,834,975.89
  5. Step 5: Solve for x
    x = 2,311,834,975.89/54,781.20
  6. Step 6: Final answer
    x = 42,201.25

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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.