Home / 90,943.71-125,495.87-50,106.06

Finding the Fourth Proportional to 90,943.71, 125,495.87 and 50,106.06

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Solution

The fourth proportional to 90,943.71, 125,495.87 and 50,106.06 is: 69,142.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,943.71 : 125,495.87 = 50,106.06 : x
  2. Step 2: Convert to fraction form
    90,943.71/125,495.87 = 50,106.06/x
  3. Step 3: Cross multiply
    90,943.71x = 125,495.87 × 50,106.06
  4. Step 4: Simplify right side
    90,943.71x = 6,288,103,591.97
  5. Step 5: Solve for x
    x = 6,288,103,591.97/90,943.71
  6. Step 6: Final answer
    x = 69,142.81

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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.