Home / 53,209.71-79,770.83-21,192.03

Finding the Fourth Proportional to 53,209.71, 79,770.83 and 21,192.03

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Solution

The fourth proportional to 53,209.71, 79,770.83 and 21,192.03 is: 31,770.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,209.71 : 79,770.83 = 21,192.03 : x
  2. Step 2: Convert to fraction form
    53,209.71/79,770.83 = 21,192.03/x
  3. Step 3: Cross multiply
    53,209.71x = 79,770.83 × 21,192.03
  4. Step 4: Simplify right side
    53,209.71x = 1,690,505,716.52
  5. Step 5: Solve for x
    x = 1,690,505,716.52/53,209.71
  6. Step 6: Final answer
    x = 31,770.62

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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.