Home / 65,774.28-90,708.96-43,105.14

Finding the Fourth Proportional to 65,774.28, 90,708.96 and 43,105.14

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Solution

The fourth proportional to 65,774.28, 90,708.96 and 43,105.14 is: 59,446.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,774.28 : 90,708.96 = 43,105.14 : x
  2. Step 2: Convert to fraction form
    65,774.28/90,708.96 = 43,105.14/x
  3. Step 3: Cross multiply
    65,774.28x = 90,708.96 × 43,105.14
  4. Step 4: Simplify right side
    65,774.28x = 3,910,022,420.05
  5. Step 5: Solve for x
    x = 3,910,022,420.05/65,774.28
  6. Step 6: Final answer
    x = 59,446.07

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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.