Home / 87,879.37-121,264.86-49,110.03

Finding the Fourth Proportional to 87,879.37, 121,264.86 and 49,110.03

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Solution

The fourth proportional to 87,879.37, 121,264.86 and 49,110.03 is: 67,767.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,879.37 : 121,264.86 = 49,110.03 : x
  2. Step 2: Convert to fraction form
    87,879.37/121,264.86 = 49,110.03/x
  3. Step 3: Cross multiply
    87,879.37x = 121,264.86 × 49,110.03
  4. Step 4: Simplify right side
    87,879.37x = 5,955,320,912.55
  5. Step 5: Solve for x
    x = 5,955,320,912.55/87,879.37
  6. Step 6: Final answer
    x = 67,767.00

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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.