Home / 87,836.78-121,215.22-50,111.04

Finding the Fourth Proportional to 87,836.78, 121,215.22 and 50,111.04

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Solution

The fourth proportional to 87,836.78, 121,215.22 and 50,111.04 is: 69,153.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,836.78 : 121,215.22 = 50,111.04 : x
  2. Step 2: Convert to fraction form
    87,836.78/121,215.22 = 50,111.04/x
  3. Step 3: Cross multiply
    87,836.78x = 121,215.22 × 50,111.04
  4. Step 4: Simplify right side
    87,836.78x = 6,074,220,738.03
  5. Step 5: Solve for x
    x = 6,074,220,738.03/87,836.78
  6. Step 6: Final answer
    x = 69,153.50

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1.5x scale

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.