Home / 71,872.71-99,184.32-40,043.64

Finding the Fourth Proportional to 71,872.71, 99,184.32 and 40,043.64

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Solution

The fourth proportional to 71,872.71, 99,184.32 and 40,043.64 is: 55,260.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,872.71 : 99,184.32 = 40,043.64 : x
  2. Step 2: Convert to fraction form
    71,872.71/99,184.32 = 40,043.64/x
  3. Step 3: Cross multiply
    71,872.71x = 99,184.32 × 40,043.64
  4. Step 4: Simplify right side
    71,872.71x = 3,971,701,203.72
  5. Step 5: Solve for x
    x = 3,971,701,203.72/71,872.71
  6. Step 6: Final answer
    x = 55,260.21

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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.