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Finding the Fourth Proportional to 71,601.84, 107,408.16 and 19,010.16

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Solution

The fourth proportional to 71,601.84, 107,408.16 and 19,010.16 is: 28,516.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,601.84 : 107,408.16 = 19,010.16 : x
  2. Step 2: Convert to fraction form
    71,601.84/107,408.16 = 19,010.16/x
  3. Step 3: Cross multiply
    71,601.84x = 107,408.16 × 19,010.16
  4. Step 4: Simplify right side
    71,601.84x = 2,041,846,306.91
  5. Step 5: Solve for x
    x = 2,041,846,306.91/71,601.84
  6. Step 6: Final answer
    x = 28,516.67

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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.