Home / 87,825.66-121,215.83-50,099.91

Finding the Fourth Proportional to 87,825.66, 121,215.83 and 50,099.91

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Solution

The fourth proportional to 87,825.66, 121,215.83 and 50,099.91 is: 69,147.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,825.66 : 121,215.83 = 50,099.91 : x
  2. Step 2: Convert to fraction form
    87,825.66/121,215.83 = 50,099.91/x
  3. Step 3: Cross multiply
    87,825.66x = 121,215.83 × 50,099.91
  4. Step 4: Simplify right side
    87,825.66x = 6,072,901,468.52
  5. Step 5: Solve for x
    x = 6,072,901,468.52/87,825.66
  6. Step 6: Final answer
    x = 69,147.24

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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.