Home / 91,895.60-137,846.91-28,721.54

Finding the Fourth Proportional to 91,895.60, 137,846.91 and 28,721.54

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Solution

The fourth proportional to 91,895.60, 137,846.91 and 28,721.54 is: 43,083.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,895.60 : 137,846.91 = 28,721.54 : x
  2. Step 2: Convert to fraction form
    91,895.60/137,846.91 = 28,721.54/x
  3. Step 3: Cross multiply
    91,895.60x = 137,846.91 × 28,721.54
  4. Step 4: Simplify right side
    91,895.60x = 3,959,175,539.44
  5. Step 5: Solve for x
    x = 3,959,175,539.44/91,895.60
  6. Step 6: Final answer
    x = 43,083.41

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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.