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Finding the Fourth Proportional to 57,083.84, 85,625.12 and 21,998.88

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Solution

The fourth proportional to 57,083.84, 85,625.12 and 21,998.88 is: 32,998.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,083.84 : 85,625.12 = 21,998.88 : x
  2. Step 2: Convert to fraction form
    57,083.84/85,625.12 = 21,998.88/x
  3. Step 3: Cross multiply
    57,083.84x = 85,625.12 × 21,998.88
  4. Step 4: Simplify right side
    57,083.84x = 1,883,656,739.87
  5. Step 5: Solve for x
    x = 1,883,656,739.87/57,083.84
  6. Step 6: Final answer
    x = 32,998.07

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1.5x scale

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.