Home / 85,318.07-117,738.15-47,077.97

Finding the Fourth Proportional to 85,318.07, 117,738.15 and 47,077.97

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Solution

The fourth proportional to 85,318.07, 117,738.15 and 47,077.97 is: 64,967.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,318.07 : 117,738.15 = 47,077.97 : x
  2. Step 2: Convert to fraction form
    85,318.07/117,738.15 = 47,077.97/x
  3. Step 3: Cross multiply
    85,318.07x = 117,738.15 × 47,077.97
  4. Step 4: Simplify right side
    85,318.07x = 5,542,873,093.56
  5. Step 5: Solve for x
    x = 5,542,873,093.56/85,318.07
  6. Step 6: Final answer
    x = 64,967.16

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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.