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Finding the Fourth Proportional to 52,806.87, 79,209.55 and 12,826.12

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Solution

The fourth proportional to 52,806.87, 79,209.55 and 12,826.12 is: 19,239.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,806.87 : 79,209.55 = 12,826.12 : x
  2. Step 2: Convert to fraction form
    52,806.87/79,209.55 = 12,826.12/x
  3. Step 3: Cross multiply
    52,806.87x = 79,209.55 × 12,826.12
  4. Step 4: Simplify right side
    52,806.87x = 1,015,951,193.45
  5. Step 5: Solve for x
    x = 1,015,951,193.45/52,806.87
  6. Step 6: Final answer
    x = 19,239.00

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1.5x scale

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.