Home / 86,745.28-130,029.30-49,226.11

Finding the Fourth Proportional to 86,745.28, 130,029.30 and 49,226.11

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Solution

The fourth proportional to 86,745.28, 130,029.30 and 49,226.11 is: 73,788.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,745.28 : 130,029.30 = 49,226.11 : x
  2. Step 2: Convert to fraction form
    86,745.28/130,029.30 = 49,226.11/x
  3. Step 3: Cross multiply
    86,745.28x = 130,029.30 × 49,226.11
  4. Step 4: Simplify right side
    86,745.28x = 6,400,836,625.02
  5. Step 5: Solve for x
    x = 6,400,836,625.02/86,745.28
  6. Step 6: Final answer
    x = 73,788.88

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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.