Home / 76,833.47-115,032.87-40,727.66

Finding the Fourth Proportional to 76,833.47, 115,032.87 and 40,727.66

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Solution

The fourth proportional to 76,833.47, 115,032.87 and 40,727.66 is: 60,976.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,833.47 : 115,032.87 = 40,727.66 : x
  2. Step 2: Convert to fraction form
    76,833.47/115,032.87 = 40,727.66/x
  3. Step 3: Cross multiply
    76,833.47x = 115,032.87 × 40,727.66
  4. Step 4: Simplify right side
    76,833.47x = 4,685,019,618.18
  5. Step 5: Solve for x
    x = 4,685,019,618.18/76,833.47
  6. Step 6: Final answer
    x = 60,976.29

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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.