Home / 51,318.40-76,977.60-48,912.70

Finding the Fourth Proportional to 51,318.40, 76,977.60 and 48,912.70

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Solution

The fourth proportional to 51,318.40, 76,977.60 and 48,912.70 is: 73,369.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,318.40 : 76,977.60 = 48,912.70 : x
  2. Step 2: Convert to fraction form
    51,318.40/76,977.60 = 48,912.70/x
  3. Step 3: Cross multiply
    51,318.40x = 76,977.60 × 48,912.70
  4. Step 4: Simplify right side
    51,318.40x = 3,765,182,255.52
  5. Step 5: Solve for x
    x = 3,765,182,255.52/51,318.40
  6. Step 6: Final answer
    x = 73,369.05

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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.