Home / 65,191.21-89,960.75-40,035.85

Finding the Fourth Proportional to 65,191.21, 89,960.75 and 40,035.85

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Solution

The fourth proportional to 65,191.21, 89,960.75 and 40,035.85 is: 55,247.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,191.21 : 89,960.75 = 40,035.85 : x
  2. Step 2: Convert to fraction form
    65,191.21/89,960.75 = 40,035.85/x
  3. Step 3: Cross multiply
    65,191.21x = 89,960.75 × 40,035.85
  4. Step 4: Simplify right side
    65,191.21x = 3,601,655,092.89
  5. Step 5: Solve for x
    x = 3,601,655,092.89/65,191.21
  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.