Home / 76,134.75-105,112.04-49,684.83

Finding the Fourth Proportional to 76,134.75, 105,112.04 and 49,684.83

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Solution

The fourth proportional to 76,134.75, 105,112.04 and 49,684.83 is: 68,595.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,134.75 : 105,112.04 = 49,684.83 : x
  2. Step 2: Convert to fraction form
    76,134.75/105,112.04 = 49,684.83/x
  3. Step 3: Cross multiply
    76,134.75x = 105,112.04 × 49,684.83
  4. Step 4: Simplify right side
    76,134.75x = 5,222,473,589.93
  5. Step 5: Solve for x
    x = 5,222,473,589.93/76,134.75
  6. Step 6: Final answer
    x = 68,595.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.