Home / 81,859.02-122,835.62-34,470.38

Finding the Fourth Proportional to 81,859.02, 122,835.62 and 34,470.38

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Solution

The fourth proportional to 81,859.02, 122,835.62 and 34,470.38 is: 51,725.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,859.02 : 122,835.62 = 34,470.38 : x
  2. Step 2: Convert to fraction form
    81,859.02/122,835.62 = 34,470.38/x
  3. Step 3: Cross multiply
    81,859.02x = 122,835.62 × 34,470.38
  4. Step 4: Simplify right side
    81,859.02x = 4,234,189,712.41
  5. Step 5: Solve for x
    x = 4,234,189,712.41/81,859.02
  6. Step 6: Final answer
    x = 51,725.39

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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.