Home / 76,787.48-115,181.94-75,154.52

Finding the Fourth Proportional to 76,787.48, 115,181.94 and 75,154.52

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Solution

The fourth proportional to 76,787.48, 115,181.94 and 75,154.52 is: 112,732.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,787.48 : 115,181.94 = 75,154.52 : x
  2. Step 2: Convert to fraction form
    76,787.48/115,181.94 = 75,154.52/x
  3. Step 3: Cross multiply
    76,787.48x = 115,181.94 × 75,154.52
  4. Step 4: Simplify right side
    76,787.48x = 8,656,443,413.37
  5. Step 5: Solve for x
    x = 8,656,443,413.37/76,787.48
  6. Step 6: Final answer
    x = 112,732.48

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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.