Home / 65,349.12-90,167.88-38,481.84

Finding the Fourth Proportional to 65,349.12, 90,167.88 and 38,481.84

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Solution

The fourth proportional to 65,349.12, 90,167.88 and 38,481.84 is: 53,096.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,349.12 : 90,167.88 = 38,481.84 : x
  2. Step 2: Convert to fraction form
    65,349.12/90,167.88 = 38,481.84/x
  3. Step 3: Cross multiply
    65,349.12x = 90,167.88 × 38,481.84
  4. Step 4: Simplify right side
    65,349.12x = 3,469,825,931.30
  5. Step 5: Solve for x
    x = 3,469,825,931.30/65,349.12
  6. Step 6: Final answer
    x = 53,096.75

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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.