Home / 88,204.20-121,721.31-47,917.64

Finding the Fourth Proportional to 88,204.20, 121,721.31 and 47,917.64

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Solution

The fourth proportional to 88,204.20, 121,721.31 and 47,917.64 is: 66,126.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,204.20 : 121,721.31 = 47,917.64 : x
  2. Step 2: Convert to fraction form
    88,204.20/121,721.31 = 47,917.64/x
  3. Step 3: Cross multiply
    88,204.20x = 121,721.31 × 47,917.64
  4. Step 4: Simplify right side
    88,204.20x = 5,832,597,912.91
  5. Step 5: Solve for x
    x = 5,832,597,912.91/88,204.20
  6. Step 6: Final answer
    x = 66,126.08

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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.