Home / 48,110.32-72,121.32-18,519.28

Finding the Fourth Proportional to 48,110.32, 72,121.32 and 18,519.28

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Solution

The fourth proportional to 48,110.32, 72,121.32 and 18,519.28 is: 27,761.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,110.32 : 72,121.32 = 18,519.28 : x
  2. Step 2: Convert to fraction form
    48,110.32/72,121.32 = 18,519.28/x
  3. Step 3: Cross multiply
    48,110.32x = 72,121.32 × 18,519.28
  4. Step 4: Simplify right side
    48,110.32x = 1,335,634,919.05
  5. Step 5: Solve for x
    x = 1,335,634,919.05/48,110.32
  6. Step 6: Final answer
    x = 27,761.92

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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.