Home / 85,351.32-117,799.20-49,571.28

Finding the Fourth Proportional to 85,351.32, 117,799.20 and 49,571.28

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Solution

The fourth proportional to 85,351.32, 117,799.20 and 49,571.28 is: 68,416.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,351.32 : 117,799.20 = 49,571.28 : x
  2. Step 2: Convert to fraction form
    85,351.32/117,799.20 = 49,571.28/x
  3. Step 3: Cross multiply
    85,351.32x = 117,799.20 × 49,571.28
  4. Step 4: Simplify right side
    85,351.32x = 5,839,457,126.98
  5. Step 5: Solve for x
    x = 5,839,457,126.98/85,351.32
  6. Step 6: Final answer
    x = 68,416.72

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1.5x scale

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.