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Finding the Fourth Proportional to 52,786.68, 72,843.02 and 28,913.46

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Solution

The fourth proportional to 52,786.68, 72,843.02 and 28,913.46 is: 39,899.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,786.68 : 72,843.02 = 28,913.46 : x
  2. Step 2: Convert to fraction form
    52,786.68/72,843.02 = 28,913.46/x
  3. Step 3: Cross multiply
    52,786.68x = 72,843.02 × 28,913.46
  4. Step 4: Simplify right side
    52,786.68x = 2,106,143,745.05
  5. Step 5: Solve for x
    x = 2,106,143,745.05/52,786.68
  6. Step 6: Final answer
    x = 39,899.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.