Home / 49,666.32-74,471.40-45,429.71

Finding the Fourth Proportional to 49,666.32, 74,471.40 and 45,429.71

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Solution

The fourth proportional to 49,666.32, 74,471.40 and 45,429.71 is: 68,118.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,666.32 : 74,471.40 = 45,429.71 : x
  2. Step 2: Convert to fraction form
    49,666.32/74,471.40 = 45,429.71/x
  3. Step 3: Cross multiply
    49,666.32x = 74,471.40 × 45,429.71
  4. Step 4: Simplify right side
    49,666.32x = 3,383,213,732.94
  5. Step 5: Solve for x
    x = 3,383,213,732.94/49,666.32
  6. Step 6: Final answer
    x = 68,118.87

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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.