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Finding the Fourth Proportional to 67,998.75, 102,001.77 and 21,255.27

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Solution

The fourth proportional to 67,998.75, 102,001.77 and 21,255.27 is: 31,884.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,998.75 : 102,001.77 = 21,255.27 : x
  2. Step 2: Convert to fraction form
    67,998.75/102,001.77 = 21,255.27/x
  3. Step 3: Cross multiply
    67,998.75x = 102,001.77 × 21,255.27
  4. Step 4: Simplify right side
    67,998.75x = 2,168,075,161.83
  5. Step 5: Solve for x
    x = 2,168,075,161.83/67,998.75
  6. Step 6: Final answer
    x = 31,884.04

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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.