Home / 76,778.66-115,177.71-30,025.46

Finding the Fourth Proportional to 76,778.66, 115,177.71 and 30,025.46

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Solution

The fourth proportional to 76,778.66, 115,177.71 and 30,025.46 is: 45,041.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,778.66 : 115,177.71 = 30,025.46 : x
  2. Step 2: Convert to fraction form
    76,778.66/115,177.71 = 30,025.46/x
  3. Step 3: Cross multiply
    76,778.66x = 115,177.71 × 30,025.46
  4. Step 4: Simplify right side
    76,778.66x = 3,458,263,724.50
  5. Step 5: Solve for x
    x = 3,458,263,724.50/76,778.66
  6. Step 6: Final answer
    x = 45,041.99

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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.