Home / 60,910.82-91,376.08-18,781.05

Finding the Fourth Proportional to 60,910.82, 91,376.08 and 18,781.05

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Solution

The fourth proportional to 60,910.82, 91,376.08 and 18,781.05 is: 28,174.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,910.82 : 91,376.08 = 18,781.05 : x
  2. Step 2: Convert to fraction form
    60,910.82/91,376.08 = 18,781.05/x
  3. Step 3: Cross multiply
    60,910.82x = 91,376.08 × 18,781.05
  4. Step 4: Simplify right side
    60,910.82x = 1,716,138,727.28
  5. Step 5: Solve for x
    x = 1,716,138,727.28/60,910.82
  6. Step 6: Final answer
    x = 28,174.61

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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.