Home / 81,927.20-122,860.08-35,156

Finding the Fourth Proportional to 81,927.20, 122,860.08 and 35,156

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Solution

The fourth proportional to 81,927.20, 122,860.08 and 35,156 is: 52,720.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,927.20 : 122,860.08 = 35,156 : x
  2. Step 2: Convert to fraction form
    81,927.20/122,860.08 = 35,156/x
  3. Step 3: Cross multiply
    81,927.20x = 122,860.08 × 35,156
  4. Step 4: Simplify right side
    81,927.20x = 4,319,268,972.48
  5. Step 5: Solve for x
    x = 4,319,268,972.48/81,927.20
  6. Step 6: Final answer
    x = 52,720.82

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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.