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Finding the Fourth Proportional to 67,999.75, 102,003.27 and 21,256.27

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Solution

The fourth proportional to 67,999.75, 102,003.27 and 21,256.27 is: 31,885.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,999.75 : 102,003.27 = 21,256.27 : x
  2. Step 2: Convert to fraction form
    67,999.75/102,003.27 = 21,256.27/x
  3. Step 3: Cross multiply
    67,999.75x = 102,003.27 × 21,256.27
  4. Step 4: Simplify right side
    67,999.75x = 2,168,209,048.00
  5. Step 5: Solve for x
    x = 2,168,209,048.00/67,999.75
  6. Step 6: Final answer
    x = 31,885.54

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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.