Home / 76,863.60-115,086.96-39,849.84

Finding the Fourth Proportional to 76,863.60, 115,086.96 and 39,849.84

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Solution

The fourth proportional to 76,863.60, 115,086.96 and 39,849.84 is: 59,666.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,863.60 : 115,086.96 = 39,849.84 : x
  2. Step 2: Convert to fraction form
    76,863.60/115,086.96 = 39,849.84/x
  3. Step 3: Cross multiply
    76,863.60x = 115,086.96 × 39,849.84
  4. Step 4: Simplify right side
    76,863.60x = 4,586,196,942.09
  5. Step 5: Solve for x
    x = 4,586,196,942.09/76,863.60
  6. Step 6: Final answer
    x = 59,666.69

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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.