Home / 90,865.48-136,325.22-40,960.84

Finding the Fourth Proportional to 90,865.48, 136,325.22 and 40,960.84

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Solution

The fourth proportional to 90,865.48, 136,325.22 and 40,960.84 is: 61,453.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,865.48 : 136,325.22 = 40,960.84 : x
  2. Step 2: Convert to fraction form
    90,865.48/136,325.22 = 40,960.84/x
  3. Step 3: Cross multiply
    90,865.48x = 136,325.22 × 40,960.84
  4. Step 4: Simplify right side
    90,865.48x = 5,583,995,524.38
  5. Step 5: Solve for x
    x = 5,583,995,524.38/90,865.48
  6. Step 6: Final answer
    x = 61,453.43

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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.