Home / 65,788.97-90,789.28-36,321.62

Finding the Fourth Proportional to 65,788.97, 90,789.28 and 36,321.62

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Solution

The fourth proportional to 65,788.97, 90,789.28 and 36,321.62 is: 50,124.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,788.97 : 90,789.28 = 36,321.62 : x
  2. Step 2: Convert to fraction form
    65,788.97/90,789.28 = 36,321.62/x
  3. Step 3: Cross multiply
    65,788.97x = 90,789.28 × 36,321.62
  4. Step 4: Simplify right side
    65,788.97x = 3,297,613,728.23
  5. Step 5: Solve for x
    x = 3,297,613,728.23/65,788.97
  6. Step 6: Final answer
    x = 50,124.11

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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.