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Finding the Fourth Proportional to 71,371.13, 107,052.64 and 21,450.22

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Solution

The fourth proportional to 71,371.13, 107,052.64 and 21,450.22 is: 32,174.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,371.13 : 107,052.64 = 21,450.22 : x
  2. Step 2: Convert to fraction form
    71,371.13/107,052.64 = 21,450.22/x
  3. Step 3: Cross multiply
    71,371.13x = 107,052.64 × 21,450.22
  4. Step 4: Simplify right side
    71,371.13x = 2,296,302,358.32
  5. Step 5: Solve for x
    x = 2,296,302,358.32/71,371.13
  6. Step 6: Final answer
    x = 32,174.11

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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.