Home / 71,738.88-98,997.62-39,908.85

Finding the Fourth Proportional to 71,738.88, 98,997.62 and 39,908.85

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Solution

The fourth proportional to 71,738.88, 98,997.62 and 39,908.85 is: 55,073.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,738.88 : 98,997.62 = 39,908.85 : x
  2. Step 2: Convert to fraction form
    71,738.88/98,997.62 = 39,908.85/x
  3. Step 3: Cross multiply
    71,738.88x = 98,997.62 × 39,908.85
  4. Step 4: Simplify right side
    71,738.88x = 3,950,881,166.94
  5. Step 5: Solve for x
    x = 3,950,881,166.94/71,738.88
  6. Step 6: Final answer
    x = 55,073.08

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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.