Home / 71,163.82-98,202.54-39,331.90

Finding the Fourth Proportional to 71,163.82, 98,202.54 and 39,331.90

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Solution

The fourth proportional to 71,163.82, 98,202.54 and 39,331.90 is: 54,276.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,163.82 : 98,202.54 = 39,331.90 : x
  2. Step 2: Convert to fraction form
    71,163.82/98,202.54 = 39,331.90/x
  3. Step 3: Cross multiply
    71,163.82x = 98,202.54 × 39,331.90
  4. Step 4: Simplify right side
    71,163.82x = 3,862,492,483.03
  5. Step 5: Solve for x
    x = 3,862,492,483.03/71,163.82
  6. Step 6: Final answer
    x = 54,276.07

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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.