Home / 55,270-76,273.14-30,120.04

Finding the Fourth Proportional to 55,270, 76,273.14 and 30,120.04

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Solution

The fourth proportional to 55,270, 76,273.14 and 30,120.04 is: 41,565.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,270 : 76,273.14 = 30,120.04 : x
  2. Step 2: Convert to fraction form
    55,270/76,273.14 = 30,120.04/x
  3. Step 3: Cross multiply
    55,270x = 76,273.14 × 30,120.04
  4. Step 4: Simplify right side
    55,270x = 2,297,350,027.73
  5. Step 5: Solve for x
    x = 2,297,350,027.73/55,270
  6. Step 6: Final answer
    x = 41,565.95

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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.