Home / 77,131.28-115,711.38-35,014.33

Finding the Fourth Proportional to 77,131.28, 115,711.38 and 35,014.33

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Solution

The fourth proportional to 77,131.28, 115,711.38 and 35,014.33 is: 52,528.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,131.28 : 115,711.38 = 35,014.33 : x
  2. Step 2: Convert to fraction form
    77,131.28/115,711.38 = 35,014.33/x
  3. Step 3: Cross multiply
    77,131.28x = 115,711.38 × 35,014.33
  4. Step 4: Simplify right side
    77,131.28x = 4,051,555,913.22
  5. Step 5: Solve for x
    x = 4,051,555,913.22/77,131.28
  6. Step 6: Final answer
    x = 52,528.06

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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.