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Finding the Fourth Proportional to 52,636.87, 72,635.82 and 28,763.74

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Solution

The fourth proportional to 52,636.87, 72,635.82 and 28,763.74 is: 39,692.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,636.87 : 72,635.82 = 28,763.74 : x
  2. Step 2: Convert to fraction form
    52,636.87/72,635.82 = 28,763.74/x
  3. Step 3: Cross multiply
    52,636.87x = 72,635.82 × 28,763.74
  4. Step 4: Simplify right side
    52,636.87x = 2,089,277,841.17
  5. Step 5: Solve for x
    x = 2,089,277,841.17/52,636.87
  6. Step 6: Final answer
    x = 39,692.29

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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.