Home / 51,046.20-76,512.60-21,455.28

Finding the Fourth Proportional to 51,046.20, 76,512.60 and 21,455.28

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Solution

The fourth proportional to 51,046.20, 76,512.60 and 21,455.28 is: 32,159.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,046.20 : 76,512.60 = 21,455.28 : x
  2. Step 2: Convert to fraction form
    51,046.20/76,512.60 = 21,455.28/x
  3. Step 3: Cross multiply
    51,046.20x = 76,512.60 × 21,455.28
  4. Step 4: Simplify right side
    51,046.20x = 1,641,599,256.53
  5. Step 5: Solve for x
    x = 1,641,599,256.53/51,046.20
  6. Step 6: Final answer
    x = 32,159.09

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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.