Home / 85,081.15-117,397.64-49,264.97

Finding the Fourth Proportional to 85,081.15, 117,397.64 and 49,264.97

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Solution

The fourth proportional to 85,081.15, 117,397.64 and 49,264.97 is: 67,977.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,081.15 : 117,397.64 = 49,264.97 : x
  2. Step 2: Convert to fraction form
    85,081.15/117,397.64 = 49,264.97/x
  3. Step 3: Cross multiply
    85,081.15x = 117,397.64 × 49,264.97
  4. Step 4: Simplify right side
    85,081.15x = 5,783,591,212.67
  5. Step 5: Solve for x
    x = 5,783,591,212.67/85,081.15
  6. Step 6: Final answer
    x = 67,977.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.