Home / 88,203.96-121,709.66-52,380.90

Finding the Fourth Proportional to 88,203.96, 121,709.66 and 52,380.90

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Solution

The fourth proportional to 88,203.96, 121,709.66 and 52,380.90 is: 72,278.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,203.96 : 121,709.66 = 52,380.90 : x
  2. Step 2: Convert to fraction form
    88,203.96/121,709.66 = 52,380.90/x
  3. Step 3: Cross multiply
    88,203.96x = 121,709.66 × 52,380.90
  4. Step 4: Simplify right side
    88,203.96x = 6,375,261,267.59
  5. Step 5: Solve for x
    x = 6,375,261,267.59/88,203.96
  6. Step 6: Final answer
    x = 72,278.63

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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.