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Finding the Fourth Proportional to 91,391.48, 137,098.50 and 44,609

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Solution

The fourth proportional to 91,391.48, 137,098.50 and 44,609 is: 66,919.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,391.48 : 137,098.50 = 44,609 : x
  2. Step 2: Convert to fraction form
    91,391.48/137,098.50 = 44,609/x
  3. Step 3: Cross multiply
    91,391.48x = 137,098.50 × 44,609
  4. Step 4: Simplify right side
    91,391.48x = 6,115,826,986.50
  5. Step 5: Solve for x
    x = 6,115,826,986.50/91,391.48
  6. Step 6: Final answer
    x = 66,919.01

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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.