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Finding the Fourth Proportional to 71,606.15, 107,401.02 and 19,019.73

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Solution

The fourth proportional to 71,606.15, 107,401.02 and 19,019.73 is: 28,527.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,606.15 : 107,401.02 = 19,019.73 : x
  2. Step 2: Convert to fraction form
    71,606.15/107,401.02 = 19,019.73/x
  3. Step 3: Cross multiply
    71,606.15x = 107,401.02 × 19,019.73
  4. Step 4: Simplify right side
    71,606.15x = 2,042,738,402.12
  5. Step 5: Solve for x
    x = 2,042,738,402.12/71,606.15
  6. Step 6: Final answer
    x = 28,527.42

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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.