Home / 51,818.64-71,515.26-31,687.32

Finding the Fourth Proportional to 51,818.64, 71,515.26 and 31,687.32

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Solution

The fourth proportional to 51,818.64, 71,515.26 and 31,687.32 is: 43,731.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,818.64 : 71,515.26 = 31,687.32 : x
  2. Step 2: Convert to fraction form
    51,818.64/71,515.26 = 31,687.32/x
  3. Step 3: Cross multiply
    51,818.64x = 71,515.26 × 31,687.32
  4. Step 4: Simplify right side
    51,818.64x = 2,266,126,928.50
  5. Step 5: Solve for x
    x = 2,266,126,928.50/51,818.64
  6. Step 6: Final answer
    x = 43,731.89

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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.