Home / 76,289.19-114,286.18-42,907.83

Finding the Fourth Proportional to 76,289.19, 114,286.18 and 42,907.83

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Solution

The fourth proportional to 76,289.19, 114,286.18 and 42,907.83 is: 64,278.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,289.19 : 114,286.18 = 42,907.83 : x
  2. Step 2: Convert to fraction form
    76,289.19/114,286.18 = 42,907.83/x
  3. Step 3: Cross multiply
    76,289.19x = 114,286.18 × 42,907.83
  4. Step 4: Simplify right side
    76,289.19x = 4,903,771,982.79
  5. Step 5: Solve for x
    x = 4,903,771,982.79/76,289.19
  6. Step 6: Final answer
    x = 64,278.73

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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.