Home / 85,340.28-117,768.74-47,100.12

Finding the Fourth Proportional to 85,340.28, 117,768.74 and 47,100.12

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Solution

The fourth proportional to 85,340.28, 117,768.74 and 47,100.12 is: 64,997.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,340.28 : 117,768.74 = 47,100.12 : x
  2. Step 2: Convert to fraction form
    85,340.28/117,768.74 = 47,100.12/x
  3. Step 3: Cross multiply
    85,340.28x = 117,768.74 × 47,100.12
  4. Step 4: Simplify right side
    85,340.28x = 5,546,921,786.25
  5. Step 5: Solve for x
    x = 5,546,921,786.25/85,340.28
  6. Step 6: Final answer
    x = 64,997.70

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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.