Home / 81,611.42-122,393.39-34,225.25

Finding the Fourth Proportional to 81,611.42, 122,393.39 and 34,225.25

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Solution

The fourth proportional to 81,611.42, 122,393.39 and 34,225.25 is: 51,327.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,611.42 : 122,393.39 = 34,225.25 : x
  2. Step 2: Convert to fraction form
    81,611.42/122,393.39 = 34,225.25/x
  3. Step 3: Cross multiply
    81,611.42x = 122,393.39 × 34,225.25
  4. Step 4: Simplify right side
    81,611.42x = 4,188,943,979.55
  5. Step 5: Solve for x
    x = 4,188,943,979.55/81,611.42
  6. Step 6: Final answer
    x = 51,327.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.