Home / 52,105.80-78,150.60-14,662.20

Finding the Fourth Proportional to 52,105.80, 78,150.60 and 14,662.20

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Solution

The fourth proportional to 52,105.80, 78,150.60 and 14,662.20 is: 21,991.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,105.80 : 78,150.60 = 14,662.20 : x
  2. Step 2: Convert to fraction form
    52,105.80/78,150.60 = 14,662.20/x
  3. Step 3: Cross multiply
    52,105.80x = 78,150.60 × 14,662.20
  4. Step 4: Simplify right side
    52,105.80x = 1,145,859,727.32
  5. Step 5: Solve for x
    x = 1,145,859,727.32/52,105.80
  6. Step 6: Final answer
    x = 21,991.02

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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.