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Finding the Fourth Proportional to 65,002.50, 97,540.20 and 64,506.78

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Solution

The fourth proportional to 65,002.50, 97,540.20 and 64,506.78 is: 96,796.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,002.50 : 97,540.20 = 64,506.78 : x
  2. Step 2: Convert to fraction form
    65,002.50/97,540.20 = 64,506.78/x
  3. Step 3: Cross multiply
    65,002.50x = 97,540.20 × 64,506.78
  4. Step 4: Simplify right side
    65,002.50x = 6,292,004,222.56
  5. Step 5: Solve for x
    x = 6,292,004,222.56/65,002.50
  6. Step 6: Final answer
    x = 96,796.34

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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.