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Finding the Fourth Proportional to 71,305.68, 106,952.12 and 21,396.93

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Solution

The fourth proportional to 71,305.68, 106,952.12 and 21,396.93 is: 32,093.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,305.68 : 106,952.12 = 21,396.93 : x
  2. Step 2: Convert to fraction form
    71,305.68/106,952.12 = 21,396.93/x
  3. Step 3: Cross multiply
    71,305.68x = 106,952.12 × 21,396.93
  4. Step 4: Simplify right side
    71,305.68x = 2,288,447,024.99
  5. Step 5: Solve for x
    x = 2,288,447,024.99/71,305.68
  6. Step 6: Final answer
    x = 32,093.47

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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.