Home / 78,358.04-117,586.44-33,379.28

Finding the Fourth Proportional to 78,358.04, 117,586.44 and 33,379.28

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Solution

The fourth proportional to 78,358.04, 117,586.44 and 33,379.28 is: 50,089.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,358.04 : 117,586.44 = 33,379.28 : x
  2. Step 2: Convert to fraction form
    78,358.04/117,586.44 = 33,379.28/x
  3. Step 3: Cross multiply
    78,358.04x = 117,586.44 × 33,379.28
  4. Step 4: Simplify right side
    78,358.04x = 3,924,950,704.96
  5. Step 5: Solve for x
    x = 3,924,950,704.96/78,358.04
  6. Step 6: Final answer
    x = 50,089.96

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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.