Home / 52,660.22-72,671.14-28,786.90

Finding the Fourth Proportional to 52,660.22, 72,671.14 and 28,786.90

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Solution

The fourth proportional to 52,660.22, 72,671.14 and 28,786.90 is: 39,725.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,660.22 : 72,671.14 = 28,786.90 : x
  2. Step 2: Convert to fraction form
    52,660.22/72,671.14 = 28,786.90/x
  3. Step 3: Cross multiply
    52,660.22x = 72,671.14 × 28,786.90
  4. Step 4: Simplify right side
    52,660.22x = 2,091,977,035.02
  5. Step 5: Solve for x
    x = 2,091,977,035.02/52,660.22
  6. Step 6: Final answer
    x = 39,725.95

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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.