Home / 71,816.20-107,729.70-19,224.52

Finding the Fourth Proportional to 71,816.20, 107,729.70 and 19,224.52

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Solution

The fourth proportional to 71,816.20, 107,729.70 and 19,224.52 is: 28,838.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,816.20 : 107,729.70 = 19,224.52 : x
  2. Step 2: Convert to fraction form
    71,816.20/107,729.70 = 19,224.52/x
  3. Step 3: Cross multiply
    71,816.20x = 107,729.70 × 19,224.52
  4. Step 4: Simplify right side
    71,816.20x = 2,071,051,772.24
  5. Step 5: Solve for x
    x = 2,071,051,772.24/71,816.20
  6. Step 6: Final answer
    x = 28,838.23

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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.