Home / 71,867.12-107,851.76-25,120.40

Finding the Fourth Proportional to 71,867.12, 107,851.76 and 25,120.40

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Solution

The fourth proportional to 71,867.12, 107,851.76 and 25,120.40 is: 37,698.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,867.12 : 107,851.76 = 25,120.40 : x
  2. Step 2: Convert to fraction form
    71,867.12/107,851.76 = 25,120.40/x
  3. Step 3: Cross multiply
    71,867.12x = 107,851.76 × 25,120.40
  4. Step 4: Simplify right side
    71,867.12x = 2,709,279,351.90
  5. Step 5: Solve for x
    x = 2,709,279,351.90/71,867.12
  6. Step 6: Final answer
    x = 37,698.45

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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.