Home / 55,721.44-76,896.94-30,570.94

Finding the Fourth Proportional to 55,721.44, 76,896.94 and 30,570.94

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Solution

The fourth proportional to 55,721.44, 76,896.94 and 30,570.94 is: 42,188.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,721.44 : 76,896.94 = 30,570.94 : x
  2. Step 2: Convert to fraction form
    55,721.44/76,896.94 = 30,570.94/x
  3. Step 3: Cross multiply
    55,721.44x = 76,896.94 × 30,570.94
  4. Step 4: Simplify right side
    55,721.44x = 2,350,811,470.25
  5. Step 5: Solve for x
    x = 2,350,811,470.25/55,721.44
  6. Step 6: Final answer
    x = 42,188.64

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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.