Home / 71,795.49-99,076.05-39,963.72

Finding the Fourth Proportional to 71,795.49, 99,076.05 and 39,963.72

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Solution

The fourth proportional to 71,795.49, 99,076.05 and 39,963.72 is: 55,148.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,795.49 : 99,076.05 = 39,963.72 : x
  2. Step 2: Convert to fraction form
    71,795.49/99,076.05 = 39,963.72/x
  3. Step 3: Cross multiply
    71,795.49x = 99,076.05 × 39,963.72
  4. Step 4: Simplify right side
    71,795.49x = 3,959,447,520.91
  5. Step 5: Solve for x
    x = 3,959,447,520.91/71,795.49
  6. Step 6: Final answer
    x = 55,148.97

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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.