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Finding the Fourth Proportional to 67,102.63, 100,666.09 and 27,638.21

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Solution

The fourth proportional to 67,102.63, 100,666.09 and 27,638.21 is: 41,462.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,102.63 : 100,666.09 = 27,638.21 : x
  2. Step 2: Convert to fraction form
    67,102.63/100,666.09 = 27,638.21/x
  3. Step 3: Cross multiply
    67,102.63x = 100,666.09 × 27,638.21
  4. Step 4: Simplify right side
    67,102.63x = 2,782,230,821.51
  5. Step 5: Solve for x
    x = 2,782,230,821.51/67,102.63
  6. Step 6: Final answer
    x = 41,462.32

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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.