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Finding the Fourth Proportional to 52,512, 78,768 and 13,600

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Solution

The fourth proportional to 52,512, 78,768 and 13,600 is: 20,400

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,512 : 78,768 = 13,600 : x
  2. Step 2: Convert to fraction form
    52,512/78,768 = 13,600/x
  3. Step 3: Cross multiply
    52,512x = 78,768 × 13,600
  4. Step 4: Simplify right side
    52,512x = 1,071,244,800
  5. Step 5: Solve for x
    x = 1,071,244,800/52,512
  6. Step 6: Final answer
    x = 20,400

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.