Home / 71,615.28-107,393.68-31,091.36

Finding the Fourth Proportional to 71,615.28, 107,393.68 and 31,091.36

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Solution

The fourth proportional to 71,615.28, 107,393.68 and 31,091.36 is: 46,624.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,615.28 : 107,393.68 = 31,091.36 : x
  2. Step 2: Convert to fraction form
    71,615.28/107,393.68 = 31,091.36/x
  3. Step 3: Cross multiply
    71,615.28x = 107,393.68 × 31,091.36
  4. Step 4: Simplify right side
    71,615.28x = 3,339,015,566.60
  5. Step 5: Solve for x
    x = 3,339,015,566.60/71,615.28
  6. Step 6: Final answer
    x = 46,624.35

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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.