Home / 69,881.18-104,838.03-19,961.96

Finding the Fourth Proportional to 69,881.18, 104,838.03 and 19,961.96

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Solution

The fourth proportional to 69,881.18, 104,838.03 and 19,961.96 is: 29,947.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,881.18 : 104,838.03 = 19,961.96 : x
  2. Step 2: Convert to fraction form
    69,881.18/104,838.03 = 19,961.96/x
  3. Step 3: Cross multiply
    69,881.18x = 104,838.03 × 19,961.96
  4. Step 4: Simplify right side
    69,881.18x = 2,092,772,037.15
  5. Step 5: Solve for x
    x = 2,092,772,037.15/69,881.18
  6. Step 6: Final answer
    x = 29,947.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.