Home / 45,152.66-67,744.94-20,190.50

Finding the Fourth Proportional to 45,152.66, 67,744.94 and 20,190.50

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Solution

The fourth proportional to 45,152.66, 67,744.94 and 20,190.50 is: 30,292.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,152.66 : 67,744.94 = 20,190.50 : x
  2. Step 2: Convert to fraction form
    45,152.66/67,744.94 = 20,190.50/x
  3. Step 3: Cross multiply
    45,152.66x = 67,744.94 × 20,190.50
  4. Step 4: Simplify right side
    45,152.66x = 1,367,804,211.07
  5. Step 5: Solve for x
    x = 1,367,804,211.07/45,152.66
  6. Step 6: Final answer
    x = 30,292.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.