Home / 67,515.36-101,284.56-20,759.52

Finding the Fourth Proportional to 67,515.36, 101,284.56 and 20,759.52

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Solution

The fourth proportional to 67,515.36, 101,284.56 and 20,759.52 is: 31,142.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,515.36 : 101,284.56 = 20,759.52 : x
  2. Step 2: Convert to fraction form
    67,515.36/101,284.56 = 20,759.52/x
  3. Step 3: Cross multiply
    67,515.36x = 101,284.56 × 20,759.52
  4. Step 4: Simplify right side
    67,515.36x = 2,102,618,849.01
  5. Step 5: Solve for x
    x = 2,102,618,849.01/67,515.36
  6. Step 6: Final answer
    x = 31,142.82

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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.