Home / 76,207.39-105,131.19-49,358.86

Finding the Fourth Proportional to 76,207.39, 105,131.19 and 49,358.86

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Solution

The fourth proportional to 76,207.39, 105,131.19 and 49,358.86 is: 68,092.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,207.39 : 105,131.19 = 49,358.86 : x
  2. Step 2: Convert to fraction form
    76,207.39/105,131.19 = 49,358.86/x
  3. Step 3: Cross multiply
    76,207.39x = 105,131.19 × 49,358.86
  4. Step 4: Simplify right side
    76,207.39x = 5,189,155,688.84
  5. Step 5: Solve for x
    x = 5,189,155,688.84/76,207.39
  6. Step 6: Final answer
    x = 68,092.55

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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.