Home / 52,178.10-78,267.90-12,735.96

Finding the Fourth Proportional to 52,178.10, 78,267.90 and 12,735.96

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Solution

The fourth proportional to 52,178.10, 78,267.90 and 12,735.96 is: 19,104.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,178.10 : 78,267.90 = 12,735.96 : x
  2. Step 2: Convert to fraction form
    52,178.10/78,267.90 = 12,735.96/x
  3. Step 3: Cross multiply
    52,178.10x = 78,267.90 × 12,735.96
  4. Step 4: Simplify right side
    52,178.10x = 996,816,843.68
  5. Step 5: Solve for x
    x = 996,816,843.68/52,178.10
  6. Step 6: Final answer
    x = 19,104.12

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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.