Home / 65,301.40-90,166.62-50,170.12

Finding the Fourth Proportional to 65,301.40, 90,166.62 and 50,170.12

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Solution

The fourth proportional to 65,301.40, 90,166.62 and 50,170.12 is: 69,273.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,301.40 : 90,166.62 = 50,170.12 : x
  2. Step 2: Convert to fraction form
    65,301.40/90,166.62 = 50,170.12/x
  3. Step 3: Cross multiply
    65,301.40x = 90,166.62 × 50,170.12
  4. Step 4: Simplify right side
    65,301.40x = 4,523,670,145.39
  5. Step 5: Solve for x
    x = 4,523,670,145.39/65,301.40
  6. Step 6: Final answer
    x = 69,273.71

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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.