Home / 81,652.15-122,447.14-48,381.60

Finding the Fourth Proportional to 81,652.15, 122,447.14 and 48,381.60

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Solution

The fourth proportional to 81,652.15, 122,447.14 and 48,381.60 is: 72,553.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,652.15 : 122,447.14 = 48,381.60 : x
  2. Step 2: Convert to fraction form
    81,652.15/122,447.14 = 48,381.60/x
  3. Step 3: Cross multiply
    81,652.15x = 122,447.14 × 48,381.60
  4. Step 4: Simplify right side
    81,652.15x = 5,924,188,548.62
  5. Step 5: Solve for x
    x = 5,924,188,548.62/81,652.15
  6. Step 6: Final answer
    x = 72,553.98

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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.