Home / 89,811.24-134,628.84-76,514.28

Finding the Fourth Proportional to 89,811.24, 134,628.84 and 76,514.28

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Solution

The fourth proportional to 89,811.24, 134,628.84 and 76,514.28 is: 114,696.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,811.24 : 134,628.84 = 76,514.28 : x
  2. Step 2: Convert to fraction form
    89,811.24/134,628.84 = 76,514.28/x
  3. Step 3: Cross multiply
    89,811.24x = 134,628.84 × 76,514.28
  4. Step 4: Simplify right side
    89,811.24x = 10,301,028,759.84
  5. Step 5: Solve for x
    x = 10,301,028,759.84/89,811.24
  6. Step 6: Final answer
    x = 114,696.43

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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.