Home / 86,621.52-129,939-27,460.56

Finding the Fourth Proportional to 86,621.52, 129,939 and 27,460.56

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Solution

The fourth proportional to 86,621.52, 129,939 and 27,460.56 is: 41,192.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,621.52 : 129,939 = 27,460.56 : x
  2. Step 2: Convert to fraction form
    86,621.52/129,939 = 27,460.56/x
  3. Step 3: Cross multiply
    86,621.52x = 129,939 × 27,460.56
  4. Step 4: Simplify right side
    86,621.52x = 3,568,197,705.84
  5. Step 5: Solve for x
    x = 3,568,197,705.84/86,621.52
  6. Step 6: Final answer
    x = 41,192.97

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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.