Home / 55,631.40-76,770.82-30,137.18

Finding the Fourth Proportional to 55,631.40, 76,770.82 and 30,137.18

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Solution

The fourth proportional to 55,631.40, 76,770.82 and 30,137.18 is: 41,589.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,631.40 : 76,770.82 = 30,137.18 : x
  2. Step 2: Convert to fraction form
    55,631.40/76,770.82 = 30,137.18/x
  3. Step 3: Cross multiply
    55,631.40x = 76,770.82 × 30,137.18
  4. Step 4: Simplify right side
    55,631.40x = 2,313,656,021.09
  5. Step 5: Solve for x
    x = 2,313,656,021.09/55,631.40
  6. Step 6: Final answer
    x = 41,589.03

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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.