Home / 81,564,087.12-112,560,876.17-50,220,218.54

Finding the Fourth Proportional to 81,564,087.12, 112,560,876.17 and 50,220,218.54

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Solution

The fourth proportional to 81,564,087.12, 112,560,876.17 and 50,220,218.54 is: 69,305,401.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,564,087.12 : 112,560,876.17 = 50,220,218.54 : x
  2. Step 2: Convert to fraction form
    81,564,087.12/112,560,876.17 = 50,220,218.54/x
  3. Step 3: Cross multiply
    81,564,087.12x = 112,560,876.17 × 50,220,218.54
  4. Step 4: Simplify right side
    81,564,087.12x = 5,652,831,800,311,278
  5. Step 5: Solve for x
    x = 5,652,831,800,311,278/81,564,087.12
  6. Step 6: Final answer
    x = 69,305,401.44

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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.