Home / 55,169.74-76,134.63-30,019.78

Finding the Fourth Proportional to 55,169.74, 76,134.63 and 30,019.78

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Solution

The fourth proportional to 55,169.74, 76,134.63 and 30,019.78 is: 41,427.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,169.74 : 76,134.63 = 30,019.78 : x
  2. Step 2: Convert to fraction form
    55,169.74/76,134.63 = 30,019.78/x
  3. Step 3: Cross multiply
    55,169.74x = 76,134.63 × 30,019.78
  4. Step 4: Simplify right side
    55,169.74x = 2,285,544,842.98
  5. Step 5: Solve for x
    x = 2,285,544,842.98/55,169.74
  6. Step 6: Final answer
    x = 41,427.51

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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.