Home / 92,315.43-138,478.61-29,137.56

Finding the Fourth Proportional to 92,315.43, 138,478.61 and 29,137.56

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Solution

The fourth proportional to 92,315.43, 138,478.61 and 29,137.56 is: 43,708.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,315.43 : 138,478.61 = 29,137.56 : x
  2. Step 2: Convert to fraction form
    92,315.43/138,478.61 = 29,137.56/x
  3. Step 3: Cross multiply
    92,315.43x = 138,478.61 × 29,137.56
  4. Step 4: Simplify right side
    92,315.43x = 4,034,928,361.14
  5. Step 5: Solve for x
    x = 4,034,928,361.14/92,315.43
  6. Step 6: Final answer
    x = 43,708.06

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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.