Home / 91,093.06-125,708.61-50,805.78

Finding the Fourth Proportional to 91,093.06, 125,708.61 and 50,805.78

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Solution

The fourth proportional to 91,093.06, 125,708.61 and 50,805.78 is: 70,112.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,093.06 : 125,708.61 = 50,805.78 : x
  2. Step 2: Convert to fraction form
    91,093.06/125,708.61 = 50,805.78/x
  3. Step 3: Cross multiply
    91,093.06x = 125,708.61 × 50,805.78
  4. Step 4: Simplify right side
    91,093.06x = 6,386,724,124.21
  5. Step 5: Solve for x
    x = 6,386,724,124.21/91,093.06
  6. Step 6: Final answer
    x = 70,112.09

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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.