Home / 65,191.20-89,960.76-40,035.84

Finding the Fourth Proportional to 65,191.20, 89,960.76 and 40,035.84

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Solution

The fourth proportional to 65,191.20, 89,960.76 and 40,035.84 is: 55,247.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,191.20 : 89,960.76 = 40,035.84 : x
  2. Step 2: Convert to fraction form
    65,191.20/89,960.76 = 40,035.84/x
  3. Step 3: Cross multiply
    65,191.20x = 89,960.76 × 40,035.84
  4. Step 4: Simplify right side
    65,191.20x = 3,601,654,593.64
  5. Step 5: Solve for x
    x = 3,601,654,593.64/65,191.20
  6. Step 6: Final answer
    x = 55,247.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.