Home / 76,723.39-115,010.70-39,301.12

Finding the Fourth Proportional to 76,723.39, 115,010.70 and 39,301.12

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Solution

The fourth proportional to 76,723.39, 115,010.70 and 39,301.12 is: 58,913.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,723.39 : 115,010.70 = 39,301.12 : x
  2. Step 2: Convert to fraction form
    76,723.39/115,010.70 = 39,301.12/x
  3. Step 3: Cross multiply
    76,723.39x = 115,010.70 × 39,301.12
  4. Step 4: Simplify right side
    76,723.39x = 4,520,049,321.98
  5. Step 5: Solve for x
    x = 4,520,049,321.98/76,723.39
  6. Step 6: Final answer
    x = 58,913.58

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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.