Home / 90,778.48-125,272.50-50,491.37

Finding the Fourth Proportional to 90,778.48, 125,272.50 and 50,491.37

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Solution

The fourth proportional to 90,778.48, 125,272.50 and 50,491.37 is: 69,677.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,778.48 : 125,272.50 = 50,491.37 : x
  2. Step 2: Convert to fraction form
    90,778.48/125,272.50 = 50,491.37/x
  3. Step 3: Cross multiply
    90,778.48x = 125,272.50 × 50,491.37
  4. Step 4: Simplify right side
    90,778.48x = 6,325,179,895.87
  5. Step 5: Solve for x
    x = 6,325,179,895.87/90,778.48
  6. Step 6: Final answer
    x = 69,677.09

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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.