Home / 76,632.75-105,759.68-43,105.23

Finding the Fourth Proportional to 76,632.75, 105,759.68 and 43,105.23

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Solution

The fourth proportional to 76,632.75, 105,759.68 and 43,105.23 is: 59,488.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,632.75 : 105,759.68 = 43,105.23 : x
  2. Step 2: Convert to fraction form
    76,632.75/105,759.68 = 43,105.23/x
  3. Step 3: Cross multiply
    76,632.75x = 105,759.68 × 43,105.23
  4. Step 4: Simplify right side
    76,632.75x = 4,558,795,115.60
  5. Step 5: Solve for x
    x = 4,558,795,115.60/76,632.75
  6. Step 6: Final answer
    x = 59,488.86

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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.