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Finding the Fourth Proportional to 71,857.58, 107,786.57 and 25,110.45

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Solution

The fourth proportional to 71,857.58, 107,786.57 and 25,110.45 is: 37,665.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,857.58 : 107,786.57 = 25,110.45 : x
  2. Step 2: Convert to fraction form
    71,857.58/107,786.57 = 25,110.45/x
  3. Step 3: Cross multiply
    71,857.58x = 107,786.57 × 25,110.45
  4. Step 4: Simplify right side
    71,857.58x = 2,706,569,151.10
  5. Step 5: Solve for x
    x = 2,706,569,151.10/71,857.58
  6. Step 6: Final answer
    x = 37,665.75

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1.5x scale

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.