Home / 81,176.20-121,475.94-49,576.48

Finding the Fourth Proportional to 81,176.20, 121,475.94 and 49,576.48

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Solution

The fourth proportional to 81,176.20, 121,475.94 and 49,576.48 is: 74,188.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,176.20 : 121,475.94 = 49,576.48 : x
  2. Step 2: Convert to fraction form
    81,176.20/121,475.94 = 49,576.48/x
  3. Step 3: Cross multiply
    81,176.20x = 121,475.94 × 49,576.48
  4. Step 4: Simplify right side
    81,176.20x = 6,022,349,509.89
  5. Step 5: Solve for x
    x = 6,022,349,509.89/81,176.20
  6. Step 6: Final answer
    x = 74,188.61

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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.