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Finding the Fourth Proportional to 48,638.90, 67,155.09 and 36,715.70

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Solution

The fourth proportional to 48,638.90, 67,155.09 and 36,715.70 is: 50,692.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,638.90 : 67,155.09 = 36,715.70 : x
  2. Step 2: Convert to fraction form
    48,638.90/67,155.09 = 36,715.70/x
  3. Step 3: Cross multiply
    48,638.90x = 67,155.09 × 36,715.70
  4. Step 4: Simplify right side
    48,638.90x = 2,465,646,137.91
  5. Step 5: Solve for x
    x = 2,465,646,137.91/48,638.90
  6. Step 6: Final answer
    x = 50,692.88

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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.