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Finding the Fourth Proportional to 71,568.88, 107,376 and 55,827.88

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Solution

The fourth proportional to 71,568.88, 107,376 and 55,827.88 is: 83,759.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,568.88 : 107,376 = 55,827.88 : x
  2. Step 2: Convert to fraction form
    71,568.88/107,376 = 55,827.88/x
  3. Step 3: Cross multiply
    71,568.88x = 107,376 × 55,827.88
  4. Step 4: Simplify right side
    71,568.88x = 5,994,574,442.88
  5. Step 5: Solve for x
    x = 5,994,574,442.88/71,568.88
  6. Step 6: Final answer
    x = 83,759.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.