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Finding the Fourth Proportional to 65,004.64, 89,734.02 and 39,519.14

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Solution

The fourth proportional to 65,004.64, 89,734.02 and 39,519.14 is: 54,553.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,004.64 : 89,734.02 = 39,519.14 : x
  2. Step 2: Convert to fraction form
    65,004.64/89,734.02 = 39,519.14/x
  3. Step 3: Cross multiply
    65,004.64x = 89,734.02 × 39,519.14
  4. Step 4: Simplify right side
    65,004.64x = 3,546,211,299.14
  5. Step 5: Solve for x
    x = 3,546,211,299.14/65,004.64
  6. Step 6: Final answer
    x = 54,553.20

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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.