Home / 71,380.09-107,061.85-18,793.67

Finding the Fourth Proportional to 71,380.09, 107,061.85 and 18,793.67

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Solution

The fourth proportional to 71,380.09, 107,061.85 and 18,793.67 is: 28,188.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,380.09 : 107,061.85 = 18,793.67 : x
  2. Step 2: Convert to fraction form
    71,380.09/107,061.85 = 18,793.67/x
  3. Step 3: Cross multiply
    71,380.09x = 107,061.85 × 18,793.67
  4. Step 4: Simplify right side
    71,380.09x = 2,012,085,078.49
  5. Step 5: Solve for x
    x = 2,012,085,078.49/71,380.09
  6. Step 6: Final answer
    x = 28,188.32

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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.