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Finding the Fourth Proportional to 68,172.87, 102,041.01 and 36,503.76

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Solution

The fourth proportional to 68,172.87, 102,041.01 and 36,503.76 is: 54,638.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,172.87 : 102,041.01 = 36,503.76 : x
  2. Step 2: Convert to fraction form
    68,172.87/102,041.01 = 36,503.76/x
  3. Step 3: Cross multiply
    68,172.87x = 102,041.01 × 36,503.76
  4. Step 4: Simplify right side
    68,172.87x = 3,724,880,539.20
  5. Step 5: Solve for x
    x = 3,724,880,539.20/68,172.87
  6. Step 6: Final answer
    x = 54,638.75

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1.5x scale

Why These Related Problems?

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