Home / 65,401.28-98,105.52-18,650.40

Finding the Fourth Proportional to 65,401.28, 98,105.52 and 18,650.40

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Solution

The fourth proportional to 65,401.28, 98,105.52 and 18,650.40 is: 27,976.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,401.28 : 98,105.52 = 18,650.40 : x
  2. Step 2: Convert to fraction form
    65,401.28/98,105.52 = 18,650.40/x
  3. Step 3: Cross multiply
    65,401.28x = 98,105.52 × 18,650.40
  4. Step 4: Simplify right side
    65,401.28x = 1,829,707,190.21
  5. Step 5: Solve for x
    x = 1,829,707,190.21/65,401.28
  6. Step 6: Final answer
    x = 27,976.63

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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.