Home / 81,052.84-121,591.41-28,453.06

Finding the Fourth Proportional to 81,052.84, 121,591.41 and 28,453.06

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Solution

The fourth proportional to 81,052.84, 121,591.41 and 28,453.06 is: 42,683.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,052.84 : 121,591.41 = 28,453.06 : x
  2. Step 2: Convert to fraction form
    81,052.84/121,591.41 = 28,453.06/x
  3. Step 3: Cross multiply
    81,052.84x = 121,591.41 × 28,453.06
  4. Step 4: Simplify right side
    81,052.84x = 3,459,647,684.21
  5. Step 5: Solve for x
    x = 3,459,647,684.21/81,052.84
  6. Step 6: Final answer
    x = 42,683.86

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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.