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Finding the Fourth Proportional to 45,506.80, 68,214.84 and 21,770.56

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Solution

The fourth proportional to 45,506.80, 68,214.84 and 21,770.56 is: 32,634.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,506.80 : 68,214.84 = 21,770.56 : x
  2. Step 2: Convert to fraction form
    45,506.80/68,214.84 = 21,770.56/x
  3. Step 3: Cross multiply
    45,506.80x = 68,214.84 × 21,770.56
  4. Step 4: Simplify right side
    45,506.80x = 1,485,075,267.11
  5. Step 5: Solve for x
    x = 1,485,075,267.11/45,506.80
  6. Step 6: Final answer
    x = 32,634.14

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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.