Home / 65,179.28-97,784.92-20,806

Finding the Fourth Proportional to 65,179.28, 97,784.92 and 20,806

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Solution

The fourth proportional to 65,179.28, 97,784.92 and 20,806 is: 31,214.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,179.28 : 97,784.92 = 20,806 : x
  2. Step 2: Convert to fraction form
    65,179.28/97,784.92 = 20,806/x
  3. Step 3: Cross multiply
    65,179.28x = 97,784.92 × 20,806
  4. Step 4: Simplify right side
    65,179.28x = 2,034,513,045.52
  5. Step 5: Solve for x
    x = 2,034,513,045.52/65,179.28
  6. Step 6: Final answer
    x = 31,214.11

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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.