Home / 71,795.64-99,075.78-39,963.72

Finding the Fourth Proportional to 71,795.64, 99,075.78 and 39,963.72

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Solution

The fourth proportional to 71,795.64, 99,075.78 and 39,963.72 is: 55,148.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,795.64 : 99,075.78 = 39,963.72 : x
  2. Step 2: Convert to fraction form
    71,795.64/99,075.78 = 39,963.72/x
  3. Step 3: Cross multiply
    71,795.64x = 99,075.78 × 39,963.72
  4. Step 4: Simplify right side
    71,795.64x = 3,959,436,730.70
  5. Step 5: Solve for x
    x = 3,959,436,730.70/71,795.64
  6. Step 6: Final answer
    x = 55,148.71

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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.