Home / 81,787.68-122,707.44-29,196

Finding the Fourth Proportional to 81,787.68, 122,707.44 and 29,196

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Solution

The fourth proportional to 81,787.68, 122,707.44 and 29,196 is: 43,803.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,787.68 : 122,707.44 = 29,196 : x
  2. Step 2: Convert to fraction form
    81,787.68/122,707.44 = 29,196/x
  3. Step 3: Cross multiply
    81,787.68x = 122,707.44 × 29,196
  4. Step 4: Simplify right side
    81,787.68x = 3,582,566,418.24
  5. Step 5: Solve for x
    x = 3,582,566,418.24/81,787.68
  6. Step 6: Final answer
    x = 43,803.25

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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.