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Finding the Fourth Proportional to 65,119.87, 97,679.79 and 30,040.39

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Solution

The fourth proportional to 65,119.87, 97,679.79 and 30,040.39 is: 45,060.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,119.87 : 97,679.79 = 30,040.39 : x
  2. Step 2: Convert to fraction form
    65,119.87/97,679.79 = 30,040.39/x
  3. Step 3: Cross multiply
    65,119.87x = 97,679.79 × 30,040.39
  4. Step 4: Simplify right side
    65,119.87x = 2,934,338,986.72
  5. Step 5: Solve for x
    x = 2,934,338,986.72/65,119.87
  6. Step 6: Final answer
    x = 45,060.58

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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.