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Finding the Fourth Proportional to 65,147.40, 89,900.82 and 36,858.96

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Solution

The fourth proportional to 65,147.40, 89,900.82 and 36,858.96 is: 50,863.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,147.40 : 89,900.82 = 36,858.96 : x
  2. Step 2: Convert to fraction form
    65,147.40/89,900.82 = 36,858.96/x
  3. Step 3: Cross multiply
    65,147.40x = 89,900.82 × 36,858.96
  4. Step 4: Simplify right side
    65,147.40x = 3,313,650,728.35
  5. Step 5: Solve for x
    x = 3,313,650,728.35/65,147.40
  6. Step 6: Final answer
    x = 50,863.90

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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.