Home / 51,236.48-70,706.40-28,265.78

Finding the Fourth Proportional to 51,236.48, 70,706.40 and 28,265.78

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Solution

The fourth proportional to 51,236.48, 70,706.40 and 28,265.78 is: 39,006.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,236.48 : 70,706.40 = 28,265.78 : x
  2. Step 2: Convert to fraction form
    51,236.48/70,706.40 = 28,265.78/x
  3. Step 3: Cross multiply
    51,236.48x = 70,706.40 × 28,265.78
  4. Step 4: Simplify right side
    51,236.48x = 1,998,571,546.99
  5. Step 5: Solve for x
    x = 1,998,571,546.99/51,236.48
  6. Step 6: Final answer
    x = 39,006.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.