Home / 52,186.36-78,277.92-12,743.68

Finding the Fourth Proportional to 52,186.36, 78,277.92 and 12,743.68

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Solution

The fourth proportional to 52,186.36, 78,277.92 and 12,743.68 is: 19,115.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,186.36 : 78,277.92 = 12,743.68 : x
  2. Step 2: Convert to fraction form
    52,186.36/78,277.92 = 12,743.68/x
  3. Step 3: Cross multiply
    52,186.36x = 78,277.92 × 12,743.68
  4. Step 4: Simplify right side
    52,186.36x = 997,548,763.55
  5. Step 5: Solve for x
    x = 997,548,763.55/52,186.36
  6. Step 6: Final answer
    x = 19,115.12

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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.