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Finding the Fourth Proportional to 71,369.88, 107,050.69 and 21,448.90

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Solution

The fourth proportional to 71,369.88, 107,050.69 and 21,448.90 is: 32,172.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,369.88 : 107,050.69 = 21,448.90 : x
  2. Step 2: Convert to fraction form
    71,369.88/107,050.69 = 21,448.90/x
  3. Step 3: Cross multiply
    71,369.88x = 107,050.69 × 21,448.90
  4. Step 4: Simplify right side
    71,369.88x = 2,296,119,544.74
  5. Step 5: Solve for x
    x = 2,296,119,544.74/71,369.88
  6. Step 6: Final answer
    x = 32,172.11

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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.