Home / 87,099.36-120,168.72-50,792.52

Finding the Fourth Proportional to 87,099.36, 120,168.72 and 50,792.52

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Solution

The fourth proportional to 87,099.36, 120,168.72 and 50,792.52 is: 70,077.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,099.36 : 120,168.72 = 50,792.52 : x
  2. Step 2: Convert to fraction form
    87,099.36/120,168.72 = 50,792.52/x
  3. Step 3: Cross multiply
    87,099.36x = 120,168.72 × 50,792.52
  4. Step 4: Simplify right side
    87,099.36x = 6,103,672,113.97
  5. Step 5: Solve for x
    x = 6,103,672,113.97/87,099.36
  6. Step 6: Final answer
    x = 70,077.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.