Home / 76,944.80-115,388.40-27,005.60

Finding the Fourth Proportional to 76,944.80, 115,388.40 and 27,005.60

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Solution

The fourth proportional to 76,944.80, 115,388.40 and 27,005.60 is: 40,498.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,944.80 : 115,388.40 = 27,005.60 : x
  2. Step 2: Convert to fraction form
    76,944.80/115,388.40 = 27,005.60/x
  3. Step 3: Cross multiply
    76,944.80x = 115,388.40 × 27,005.60
  4. Step 4: Simplify right side
    76,944.80x = 3,116,132,975.04
  5. Step 5: Solve for x
    x = 3,116,132,975.04/76,944.80
  6. Step 6: Final answer
    x = 40,498.29

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1.5x scale

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.