Home / 71,724.10-107,598.30-21,803.80

Finding the Fourth Proportional to 71,724.10, 107,598.30 and 21,803.80

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Solution

The fourth proportional to 71,724.10, 107,598.30 and 21,803.80 is: 32,709.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,724.10 : 107,598.30 = 21,803.80 : x
  2. Step 2: Convert to fraction form
    71,724.10/107,598.30 = 21,803.80/x
  3. Step 3: Cross multiply
    71,724.10x = 107,598.30 × 21,803.80
  4. Step 4: Simplify right side
    71,724.10x = 2,346,051,813.54
  5. Step 5: Solve for x
    x = 2,346,051,813.54/71,724.10
  6. Step 6: Final answer
    x = 32,709.39

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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.