Home / 52,197.21-78,295.86-12,753.90

Finding the Fourth Proportional to 52,197.21, 78,295.86 and 12,753.90

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Solution

The fourth proportional to 52,197.21, 78,295.86 and 12,753.90 is: 19,130.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,197.21 : 78,295.86 = 12,753.90 : x
  2. Step 2: Convert to fraction form
    52,197.21/78,295.86 = 12,753.90/x
  3. Step 3: Cross multiply
    52,197.21x = 78,295.86 × 12,753.90
  4. Step 4: Simplify right side
    52,197.21x = 998,577,568.85
  5. Step 5: Solve for x
    x = 998,577,568.85/52,197.21
  6. Step 6: Final answer
    x = 19,130.86

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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.