Home / 91,099.08-125,716.86-50,811.78

Finding the Fourth Proportional to 91,099.08, 125,716.86 and 50,811.78

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Solution

The fourth proportional to 91,099.08, 125,716.86 and 50,811.78 is: 70,120.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,099.08 : 125,716.86 = 50,811.78 : x
  2. Step 2: Convert to fraction form
    91,099.08/125,716.86 = 50,811.78/x
  3. Step 3: Cross multiply
    91,099.08x = 125,716.86 × 50,811.78
  4. Step 4: Simplify right side
    91,099.08x = 6,387,897,432.61
  5. Step 5: Solve for x
    x = 6,387,897,432.61/91,099.08
  6. Step 6: Final answer
    x = 70,120.33

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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.