Home / 75,136.28-112,704.48-30,755.36

Finding the Fourth Proportional to 75,136.28, 112,704.48 and 30,755.36

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Solution

The fourth proportional to 75,136.28, 112,704.48 and 30,755.36 is: 46,133.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,136.28 : 112,704.48 = 30,755.36 : x
  2. Step 2: Convert to fraction form
    75,136.28/112,704.48 = 30,755.36/x
  3. Step 3: Cross multiply
    75,136.28x = 112,704.48 × 30,755.36
  4. Step 4: Simplify right side
    75,136.28x = 3,466,266,856.01
  5. Step 5: Solve for x
    x = 3,466,266,856.01/75,136.28
  6. Step 6: Final answer
    x = 46,133.06

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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.