Home / 91,639.06-137,408.55-27,587.86

Finding the Fourth Proportional to 91,639.06, 137,408.55 and 27,587.86

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Solution

The fourth proportional to 91,639.06, 137,408.55 and 27,587.86 is: 41,366.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,639.06 : 137,408.55 = 27,587.86 : x
  2. Step 2: Convert to fraction form
    91,639.06/137,408.55 = 27,587.86/x
  3. Step 3: Cross multiply
    91,639.06x = 137,408.55 × 27,587.86
  4. Step 4: Simplify right side
    91,639.06x = 3,790,807,840.20
  5. Step 5: Solve for x
    x = 3,790,807,840.20/91,639.06
  6. Step 6: Final answer
    x = 41,366.73

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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.