Home / 48,678.40-73,009.32-13,609.90

Finding the Fourth Proportional to 48,678.40, 73,009.32 and 13,609.90

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Solution

The fourth proportional to 48,678.40, 73,009.32 and 13,609.90 is: 20,412.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,678.40 : 73,009.32 = 13,609.90 : x
  2. Step 2: Convert to fraction form
    48,678.40/73,009.32 = 13,609.90/x
  3. Step 3: Cross multiply
    48,678.40x = 73,009.32 × 13,609.90
  4. Step 4: Simplify right side
    48,678.40x = 993,649,544.27
  5. Step 5: Solve for x
    x = 993,649,544.27/48,678.40
  6. Step 6: Final answer
    x = 20,412.54

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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.