Home / 71,553.46-98,738.82-39,719.84

Finding the Fourth Proportional to 71,553.46, 98,738.82 and 39,719.84

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Solution

The fourth proportional to 71,553.46, 98,738.82 and 39,719.84 is: 54,810.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,553.46 : 98,738.82 = 39,719.84 : x
  2. Step 2: Convert to fraction form
    71,553.46/98,738.82 = 39,719.84/x
  3. Step 3: Cross multiply
    71,553.46x = 98,738.82 × 39,719.84
  4. Step 4: Simplify right side
    71,553.46x = 3,921,890,132.19
  5. Step 5: Solve for x
    x = 3,921,890,132.19/71,553.46
  6. Step 6: Final answer
    x = 54,810.63

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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.