Home / 36,896.80-55,280.40-30,287.20

Finding the Fourth Proportional to 36,896.80, 55,280.40 and 30,287.20

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Solution

The fourth proportional to 36,896.80, 55,280.40 and 30,287.20 is: 45,377.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,896.80 : 55,280.40 = 30,287.20 : x
  2. Step 2: Convert to fraction form
    36,896.80/55,280.40 = 30,287.20/x
  3. Step 3: Cross multiply
    36,896.80x = 55,280.40 × 30,287.20
  4. Step 4: Simplify right side
    36,896.80x = 1,674,288,530.88
  5. Step 5: Solve for x
    x = 1,674,288,530.88/36,896.80
  6. Step 6: Final answer
    x = 45,377.61

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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.