Home / 71,640.05-98,871.84-41,435.15

Finding the Fourth Proportional to 71,640.05, 98,871.84 and 41,435.15

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Solution

The fourth proportional to 71,640.05, 98,871.84 and 41,435.15 is: 57,185.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,640.05 : 98,871.84 = 41,435.15 : x
  2. Step 2: Convert to fraction form
    71,640.05/98,871.84 = 41,435.15/x
  3. Step 3: Cross multiply
    71,640.05x = 98,871.84 × 41,435.15
  4. Step 4: Simplify right side
    71,640.05x = 4,096,769,026.82
  5. Step 5: Solve for x
    x = 4,096,769,026.82/71,640.05
  6. Step 6: Final answer
    x = 57,185.46

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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.