Home / 56,972.14-85,408.99-21,887.80

Finding the Fourth Proportional to 56,972.14, 85,408.99 and 21,887.80

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Solution

The fourth proportional to 56,972.14, 85,408.99 and 21,887.80 is: 32,812.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,972.14 : 85,408.99 = 21,887.80 : x
  2. Step 2: Convert to fraction form
    56,972.14/85,408.99 = 21,887.80/x
  3. Step 3: Cross multiply
    56,972.14x = 85,408.99 × 21,887.80
  4. Step 4: Simplify right side
    56,972.14x = 1,869,414,891.32
  5. Step 5: Solve for x
    x = 1,869,414,891.32/56,972.14
  6. Step 6: Final answer
    x = 32,812.79

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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.