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Finding the Fourth Proportional to 71,440.47, 107,175.69 and 21,524.22

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Solution

The fourth proportional to 71,440.47, 107,175.69 and 21,524.22 is: 32,290.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,440.47 : 107,175.69 = 21,524.22 : x
  2. Step 2: Convert to fraction form
    71,440.47/107,175.69 = 21,524.22/x
  3. Step 3: Cross multiply
    71,440.47x = 107,175.69 × 21,524.22
  4. Step 4: Simplify right side
    71,440.47x = 2,306,873,130.21
  5. Step 5: Solve for x
    x = 2,306,873,130.21/71,440.47
  6. Step 6: Final answer
    x = 32,290.84

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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.