Home / 91,786.58-137,721.18-49,617.29

Finding the Fourth Proportional to 91,786.58, 137,721.18 and 49,617.29

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Solution

The fourth proportional to 91,786.58, 137,721.18 and 49,617.29 is: 74,448.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,786.58 : 137,721.18 = 49,617.29 : x
  2. Step 2: Convert to fraction form
    91,786.58/137,721.18 = 49,617.29/x
  3. Step 3: Cross multiply
    91,786.58x = 137,721.18 × 49,617.29
  4. Step 4: Simplify right side
    91,786.58x = 6,833,352,257.57
  5. Step 5: Solve for x
    x = 6,833,352,257.57/91,786.58
  6. Step 6: Final answer
    x = 74,448.27

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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.