Home / 81,233.48-121,798.32-39,029.58

Finding the Fourth Proportional to 81,233.48, 121,798.32 and 39,029.58

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Solution

The fourth proportional to 81,233.48, 121,798.32 and 39,029.58 is: 58,519.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,233.48 : 121,798.32 = 39,029.58 : x
  2. Step 2: Convert to fraction form
    81,233.48/121,798.32 = 39,029.58/x
  3. Step 3: Cross multiply
    81,233.48x = 121,798.32 × 39,029.58
  4. Step 4: Simplify right side
    81,233.48x = 4,753,737,127.94
  5. Step 5: Solve for x
    x = 4,753,737,127.94/81,233.48
  6. Step 6: Final answer
    x = 58,519.43

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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.