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Finding the Fourth Proportional to 52,786.21, 72,845.00 and 28,913.28

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Solution

The fourth proportional to 52,786.21, 72,845.00 and 28,913.28 is: 39,900.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,786.21 : 72,845.00 = 28,913.28 : x
  2. Step 2: Convert to fraction form
    52,786.21/72,845.00 = 28,913.28/x
  3. Step 3: Cross multiply
    52,786.21x = 72,845.00 × 28,913.28
  4. Step 4: Simplify right side
    52,786.21x = 2,106,187,695.85
  5. Step 5: Solve for x
    x = 2,106,187,695.85/52,786.21
  6. Step 6: Final answer
    x = 39,900.34

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