Home / 81,426.94-122,157.96-25,265.86

Finding the Fourth Proportional to 81,426.94, 122,157.96 and 25,265.86

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Solution

The fourth proportional to 81,426.94, 122,157.96 and 25,265.86 is: 37,904.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,426.94 : 122,157.96 = 25,265.86 : x
  2. Step 2: Convert to fraction form
    81,426.94/122,157.96 = 25,265.86/x
  3. Step 3: Cross multiply
    81,426.94x = 122,157.96 × 25,265.86
  4. Step 4: Simplify right side
    81,426.94x = 3,086,425,915.25
  5. Step 5: Solve for x
    x = 3,086,425,915.25/81,426.94
  6. Step 6: Final answer
    x = 37,904.24

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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.