Home / 76,742.56-115,129.41-32,369.46

Finding the Fourth Proportional to 76,742.56, 115,129.41 and 32,369.46

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Solution

The fourth proportional to 76,742.56, 115,129.41 and 32,369.46 is: 48,560.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,742.56 : 115,129.41 = 32,369.46 : x
  2. Step 2: Convert to fraction form
    76,742.56/115,129.41 = 32,369.46/x
  3. Step 3: Cross multiply
    76,742.56x = 115,129.41 × 32,369.46
  4. Step 4: Simplify right side
    76,742.56x = 3,726,676,831.82
  5. Step 5: Solve for x
    x = 3,726,676,831.82/76,742.56
  6. Step 6: Final answer
    x = 48,560.76

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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.