Home / 76,852.92-115,285.32-29,490.68

Finding the Fourth Proportional to 76,852.92, 115,285.32 and 29,490.68

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Solution

The fourth proportional to 76,852.92, 115,285.32 and 29,490.68 is: 44,238.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,852.92 : 115,285.32 = 29,490.68 : x
  2. Step 2: Convert to fraction form
    76,852.92/115,285.32 = 29,490.68/x
  3. Step 3: Cross multiply
    76,852.92x = 115,285.32 × 29,490.68
  4. Step 4: Simplify right side
    76,852.92x = 3,399,842,480.82
  5. Step 5: Solve for x
    x = 3,399,842,480.82/76,852.92
  6. Step 6: Final answer
    x = 44,238.30

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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.