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Finding the Fourth Proportional to 52,863.72, 72,954.03 and 28,991.25

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Solution

The fourth proportional to 52,863.72, 72,954.03 and 28,991.25 is: 40,009.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,863.72 : 72,954.03 = 28,991.25 : x
  2. Step 2: Convert to fraction form
    52,863.72/72,954.03 = 28,991.25/x
  3. Step 3: Cross multiply
    52,863.72x = 72,954.03 × 28,991.25
  4. Step 4: Simplify right side
    52,863.72x = 2,115,028,522.24
  5. Step 5: Solve for x
    x = 2,115,028,522.24/52,863.72
  6. Step 6: Final answer
    x = 40,009.07

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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.