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Finding the Fourth Proportional to 65,144.25, 89,899.47 and 36,855.81

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Solution

The fourth proportional to 65,144.25, 89,899.47 and 36,855.81 is: 50,861.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,144.25 : 89,899.47 = 36,855.81 : x
  2. Step 2: Convert to fraction form
    65,144.25/89,899.47 = 36,855.81/x
  3. Step 3: Cross multiply
    65,144.25x = 89,899.47 × 36,855.81
  4. Step 4: Simplify right side
    65,144.25x = 3,313,317,785.42
  5. Step 5: Solve for x
    x = 3,313,317,785.42/65,144.25
  6. Step 6: Final answer
    x = 50,861.25

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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.