Home / 81,986.59-122,993.91-37,617.15

Finding the Fourth Proportional to 81,986.59, 122,993.91 and 37,617.15

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Solution

The fourth proportional to 81,986.59, 122,993.91 and 37,617.15 is: 56,432.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,986.59 : 122,993.91 = 37,617.15 : x
  2. Step 2: Convert to fraction form
    81,986.59/122,993.91 = 37,617.15/x
  3. Step 3: Cross multiply
    81,986.59x = 122,993.91 × 37,617.15
  4. Step 4: Simplify right side
    81,986.59x = 4,626,680,361.56
  5. Step 5: Solve for x
    x = 4,626,680,361.56/81,986.59
  6. Step 6: Final answer
    x = 56,432.16

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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.