Home / 67,679.23-101,528.57-20,935.75

Finding the Fourth Proportional to 67,679.23, 101,528.57 and 20,935.75

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Solution

The fourth proportional to 67,679.23, 101,528.57 and 20,935.75 is: 31,406.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,679.23 : 101,528.57 = 20,935.75 : x
  2. Step 2: Convert to fraction form
    67,679.23/101,528.57 = 20,935.75/x
  3. Step 3: Cross multiply
    67,679.23x = 101,528.57 × 20,935.75
  4. Step 4: Simplify right side
    67,679.23x = 2,125,576,759.38
  5. Step 5: Solve for x
    x = 2,125,576,759.38/67,679.23
  6. Step 6: Final answer
    x = 31,406.63

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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.