Home / 76,558.21-114,860.65-39,144.57

Finding the Fourth Proportional to 76,558.21, 114,860.65 and 39,144.57

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Solution

The fourth proportional to 76,558.21, 114,860.65 and 39,144.57 is: 58,728.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,558.21 : 114,860.65 = 39,144.57 : x
  2. Step 2: Convert to fraction form
    76,558.21/114,860.65 = 39,144.57/x
  3. Step 3: Cross multiply
    76,558.21x = 114,860.65 × 39,144.57
  4. Step 4: Simplify right side
    76,558.21x = 4,496,170,298.98
  5. Step 5: Solve for x
    x = 4,496,170,298.98/76,558.21
  6. Step 6: Final answer
    x = 58,728.78

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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.