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Finding the Fourth Proportional to 65,165.10, 97,728.45 and 25,709.10

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Solution

The fourth proportional to 65,165.10, 97,728.45 and 25,709.10 is: 38,556.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,165.10 : 97,728.45 = 25,709.10 : x
  2. Step 2: Convert to fraction form
    65,165.10/97,728.45 = 25,709.10/x
  3. Step 3: Cross multiply
    65,165.10x = 97,728.45 × 25,709.10
  4. Step 4: Simplify right side
    65,165.10x = 2,512,510,493.90
  5. Step 5: Solve for x
    x = 2,512,510,493.90/65,165.10
  6. Step 6: Final answer
    x = 38,556.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.