Home / 76,289.68-114,435.16-31,335.76

Finding the Fourth Proportional to 76,289.68, 114,435.16 and 31,335.76

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Solution

The fourth proportional to 76,289.68, 114,435.16 and 31,335.76 is: 47,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,289.68 : 114,435.16 = 31,335.76 : x
  2. Step 2: Convert to fraction form
    76,289.68/114,435.16 = 31,335.76/x
  3. Step 3: Cross multiply
    76,289.68x = 114,435.16 × 31,335.76
  4. Step 4: Simplify right side
    76,289.68x = 3,585,912,709.32
  5. Step 5: Solve for x
    x = 3,585,912,709.32/76,289.68
  6. Step 6: Final answer
    x = 47,003.90

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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.