Home / 51,351.66-70,865.76-30,131.28

Finding the Fourth Proportional to 51,351.66, 70,865.76 and 30,131.28

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Solution

The fourth proportional to 51,351.66, 70,865.76 and 30,131.28 is: 41,581.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,351.66 : 70,865.76 = 30,131.28 : x
  2. Step 2: Convert to fraction form
    51,351.66/70,865.76 = 30,131.28/x
  3. Step 3: Cross multiply
    51,351.66x = 70,865.76 × 30,131.28
  4. Step 4: Simplify right side
    51,351.66x = 2,135,276,056.97
  5. Step 5: Solve for x
    x = 2,135,276,056.97/51,351.66
  6. Step 6: Final answer
    x = 41,581.44

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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.