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Finding the Fourth Proportional to 65,238.71, 97,881.38 and 40,249.67

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Solution

The fourth proportional to 65,238.71, 97,881.38 and 40,249.67 is: 60,388.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,238.71 : 97,881.38 = 40,249.67 : x
  2. Step 2: Convert to fraction form
    65,238.71/97,881.38 = 40,249.67/x
  3. Step 3: Cross multiply
    65,238.71x = 97,881.38 × 40,249.67
  4. Step 4: Simplify right side
    65,238.71x = 3,939,692,553.49
  5. Step 5: Solve for x
    x = 3,939,692,553.49/65,238.71
  6. Step 6: Final answer
    x = 60,388.88

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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.