Home / 57,218.68-85,806.96-19,769.14

Finding the Fourth Proportional to 57,218.68, 85,806.96 and 19,769.14

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Solution

The fourth proportional to 57,218.68, 85,806.96 and 19,769.14 is: 29,646.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,218.68 : 85,806.96 = 19,769.14 : x
  2. Step 2: Convert to fraction form
    57,218.68/85,806.96 = 19,769.14/x
  3. Step 3: Cross multiply
    57,218.68x = 85,806.96 × 19,769.14
  4. Step 4: Simplify right side
    57,218.68x = 1,696,329,805.21
  5. Step 5: Solve for x
    x = 1,696,329,805.21/57,218.68
  6. Step 6: Final answer
    x = 29,646.43

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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.