Home / 52,149.44-78,223.92-12,706.40

Finding the Fourth Proportional to 52,149.44, 78,223.92 and 12,706.40

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Solution

The fourth proportional to 52,149.44, 78,223.92 and 12,706.40 is: 19,059.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,149.44 : 78,223.92 = 12,706.40 : x
  2. Step 2: Convert to fraction form
    52,149.44/78,223.92 = 12,706.40/x
  3. Step 3: Cross multiply
    52,149.44x = 78,223.92 × 12,706.40
  4. Step 4: Simplify right side
    52,149.44x = 993,944,417.09
  5. Step 5: Solve for x
    x = 993,944,417.09/52,149.44
  6. Step 6: Final answer
    x = 19,059.54

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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.