Home / 48,516.72-72,761.64-13,453.68

Finding the Fourth Proportional to 48,516.72, 72,761.64 and 13,453.68

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Solution

The fourth proportional to 48,516.72, 72,761.64 and 13,453.68 is: 20,176.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,516.72 : 72,761.64 = 13,453.68 : x
  2. Step 2: Convert to fraction form
    48,516.72/72,761.64 = 13,453.68/x
  3. Step 3: Cross multiply
    48,516.72x = 72,761.64 × 13,453.68
  4. Step 4: Simplify right side
    48,516.72x = 978,911,820.84
  5. Step 5: Solve for x
    x = 978,911,820.84/48,516.72
  6. Step 6: Final answer
    x = 20,176.79

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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.