Home / 51,384.26-70,921.72-31,236.88

Finding the Fourth Proportional to 51,384.26, 70,921.72 and 31,236.88

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Solution

The fourth proportional to 51,384.26, 70,921.72 and 31,236.88 is: 43,113.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,384.26 : 70,921.72 = 31,236.88 : x
  2. Step 2: Convert to fraction form
    51,384.26/70,921.72 = 31,236.88/x
  3. Step 3: Cross multiply
    51,384.26x = 70,921.72 × 31,236.88
  4. Step 4: Simplify right side
    51,384.26x = 2,215,372,902.43
  5. Step 5: Solve for x
    x = 2,215,372,902.43/51,384.26
  6. Step 6: Final answer
    x = 43,113.84

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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.