Home / 48,462.72-72,680.64-13,399.68

Finding the Fourth Proportional to 48,462.72, 72,680.64 and 13,399.68

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Solution

The fourth proportional to 48,462.72, 72,680.64 and 13,399.68 is: 20,095.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,462.72 : 72,680.64 = 13,399.68 : x
  2. Step 2: Convert to fraction form
    48,462.72/72,680.64 = 13,399.68/x
  3. Step 3: Cross multiply
    48,462.72x = 72,680.64 × 13,399.68
  4. Step 4: Simplify right side
    48,462.72x = 973,897,318.20
  5. Step 5: Solve for x
    x = 973,897,318.20/48,462.72
  6. Step 6: Final answer
    x = 20,095.80

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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.