Home / 71,795.50-99,076.06-39,963.70

Finding the Fourth Proportional to 71,795.50, 99,076.06 and 39,963.70

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Solution

The fourth proportional to 71,795.50, 99,076.06 and 39,963.70 is: 55,148.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,795.50 : 99,076.06 = 39,963.70 : x
  2. Step 2: Convert to fraction form
    71,795.50/99,076.06 = 39,963.70/x
  3. Step 3: Cross multiply
    71,795.50x = 99,076.06 × 39,963.70
  4. Step 4: Simplify right side
    71,795.50x = 3,959,445,939.02
  5. Step 5: Solve for x
    x = 3,959,445,939.02/71,795.50
  6. Step 6: Final answer
    x = 55,148.94

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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.