Home / 51,989.60-77,936.52-16,911.20

Finding the Fourth Proportional to 51,989.60, 77,936.52 and 16,911.20

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Solution

The fourth proportional to 51,989.60, 77,936.52 and 16,911.20 is: 25,351.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,989.60 : 77,936.52 = 16,911.20 : x
  2. Step 2: Convert to fraction form
    51,989.60/77,936.52 = 16,911.20/x
  3. Step 3: Cross multiply
    51,989.60x = 77,936.52 × 16,911.20
  4. Step 4: Simplify right side
    51,989.60x = 1,318,000,077.02
  5. Step 5: Solve for x
    x = 1,318,000,077.02/51,989.60
  6. Step 6: Final answer
    x = 25,351.23

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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.