Home / 65,769.24-90,740.87-40,249

Finding the Fourth Proportional to 65,769.24, 90,740.87 and 40,249

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Solution

The fourth proportional to 65,769.24, 90,740.87 and 40,249 is: 55,530.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,769.24 : 90,740.87 = 40,249 : x
  2. Step 2: Convert to fraction form
    65,769.24/90,740.87 = 40,249/x
  3. Step 3: Cross multiply
    65,769.24x = 90,740.87 × 40,249
  4. Step 4: Simplify right side
    65,769.24x = 3,652,229,276.63
  5. Step 5: Solve for x
    x = 3,652,229,276.63/65,769.24
  6. Step 6: Final answer
    x = 55,530.96

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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.