Home / 76,256.40-114,515.82-72,975.90

Finding the Fourth Proportional to 76,256.40, 114,515.82 and 72,975.90

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Solution

The fourth proportional to 76,256.40, 114,515.82 and 72,975.90 is: 109,589.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,256.40 : 114,515.82 = 72,975.90 : x
  2. Step 2: Convert to fraction form
    76,256.40/114,515.82 = 72,975.90/x
  3. Step 3: Cross multiply
    76,256.40x = 114,515.82 × 72,975.90
  4. Step 4: Simplify right side
    76,256.40x = 8,356,895,028.74
  5. Step 5: Solve for x
    x = 8,356,895,028.74/76,256.40
  6. Step 6: Final answer
    x = 109,589.43

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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.