Home / 48,450.72-72,680.24-13,390.38

Finding the Fourth Proportional to 48,450.72, 72,680.24 and 13,390.38

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Solution

The fourth proportional to 48,450.72, 72,680.24 and 13,390.38 is: 20,086.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,450.72 : 72,680.24 = 13,390.38 : x
  2. Step 2: Convert to fraction form
    48,450.72/72,680.24 = 13,390.38/x
  3. Step 3: Cross multiply
    48,450.72x = 72,680.24 × 13,390.38
  4. Step 4: Simplify right side
    48,450.72x = 973,215,965.14
  5. Step 5: Solve for x
    x = 973,215,965.14/48,450.72
  6. Step 6: Final answer
    x = 20,086.72

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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.