Home / 87,119.50-120,206.37-51,296.44

Finding the Fourth Proportional to 87,119.50, 120,206.37 and 51,296.44

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Solution

The fourth proportional to 87,119.50, 120,206.37 and 51,296.44 is: 70,778.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,119.50 : 120,206.37 = 51,296.44 : x
  2. Step 2: Convert to fraction form
    87,119.50/120,206.37 = 51,296.44/x
  3. Step 3: Cross multiply
    87,119.50x = 120,206.37 × 51,296.44
  4. Step 4: Simplify right side
    87,119.50x = 6,166,158,846.32
  5. Step 5: Solve for x
    x = 6,166,158,846.32/87,119.50
  6. Step 6: Final answer
    x = 70,778.17

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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.