Home / 55,621.54-76,757.79-30,470.50

Finding the Fourth Proportional to 55,621.54, 76,757.79 and 30,470.50

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Solution

The fourth proportional to 55,621.54, 76,757.79 and 30,470.50 is: 42,049.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,621.54 : 76,757.79 = 30,470.50 : x
  2. Step 2: Convert to fraction form
    55,621.54/76,757.79 = 30,470.50/x
  3. Step 3: Cross multiply
    55,621.54x = 76,757.79 × 30,470.50
  4. Step 4: Simplify right side
    55,621.54x = 2,338,848,240.20
  5. Step 5: Solve for x
    x = 2,338,848,240.20/55,621.54
  6. Step 6: Final answer
    x = 42,049.33

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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.