Home / 87,820.32-121,192.24-50,093.60

Finding the Fourth Proportional to 87,820.32, 121,192.24 and 50,093.60

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Solution

The fourth proportional to 87,820.32, 121,192.24 and 50,093.60 is: 69,129.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,820.32 : 121,192.24 = 50,093.60 : x
  2. Step 2: Convert to fraction form
    87,820.32/121,192.24 = 50,093.60/x
  3. Step 3: Cross multiply
    87,820.32x = 121,192.24 × 50,093.60
  4. Step 4: Simplify right side
    87,820.32x = 6,070,955,593.66
  5. Step 5: Solve for x
    x = 6,070,955,593.66/87,820.32
  6. Step 6: Final answer
    x = 69,129.28

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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.