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Finding the Fourth Proportional to 65,230.91, 90,020.12 and 36,552.71

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Solution

The fourth proportional to 65,230.91, 90,020.12 and 36,552.71 is: 50,443.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,230.91 : 90,020.12 = 36,552.71 : x
  2. Step 2: Convert to fraction form
    65,230.91/90,020.12 = 36,552.71/x
  3. Step 3: Cross multiply
    65,230.91x = 90,020.12 × 36,552.71
  4. Step 4: Simplify right side
    65,230.91x = 3,290,479,340.53
  5. Step 5: Solve for x
    x = 3,290,479,340.53/65,230.91
  6. Step 6: Final answer
    x = 50,443.56

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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.