Home / 90,611.60-125,039.76-50,327.82

Finding the Fourth Proportional to 90,611.60, 125,039.76 and 50,327.82

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Solution

The fourth proportional to 90,611.60, 125,039.76 and 50,327.82 is: 69,450.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,611.60 : 125,039.76 = 50,327.82 : x
  2. Step 2: Convert to fraction form
    90,611.60/125,039.76 = 50,327.82/x
  3. Step 3: Cross multiply
    90,611.60x = 125,039.76 × 50,327.82
  4. Step 4: Simplify right side
    90,611.60x = 6,292,978,534.12
  5. Step 5: Solve for x
    x = 6,292,978,534.12/90,611.60
  6. Step 6: Final answer
    x = 69,450.03

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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.