Home / 52,209.32-78,313.50-12,766.60

Finding the Fourth Proportional to 52,209.32, 78,313.50 and 12,766.60

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Solution

The fourth proportional to 52,209.32, 78,313.50 and 12,766.60 is: 19,149.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,209.32 : 78,313.50 = 12,766.60 : x
  2. Step 2: Convert to fraction form
    52,209.32/78,313.50 = 12,766.60/x
  3. Step 3: Cross multiply
    52,209.32x = 78,313.50 × 12,766.60
  4. Step 4: Simplify right side
    52,209.32x = 999,797,129.10
  5. Step 5: Solve for x
    x = 999,797,129.10/52,209.32
  6. Step 6: Final answer
    x = 19,149.78

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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.