Home / 82,420.14-123,629.94-29,817.12

Finding the Fourth Proportional to 82,420.14, 123,629.94 and 29,817.12

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Solution

The fourth proportional to 82,420.14, 123,629.94 and 29,817.12 is: 44,725.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,420.14 : 123,629.94 = 29,817.12 : x
  2. Step 2: Convert to fraction form
    82,420.14/123,629.94 = 29,817.12/x
  3. Step 3: Cross multiply
    82,420.14x = 123,629.94 × 29,817.12
  4. Step 4: Simplify right side
    82,420.14x = 3,686,288,756.57
  5. Step 5: Solve for x
    x = 3,686,288,756.57/82,420.14
  6. Step 6: Final answer
    x = 44,725.58

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1.5x scale

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.