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Finding the Fourth Proportional to 45,604.48, 68,406.76 and 36,428.80

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Solution

The fourth proportional to 45,604.48, 68,406.76 and 36,428.80 is: 54,643.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,604.48 : 68,406.76 = 36,428.80 : x
  2. Step 2: Convert to fraction form
    45,604.48/68,406.76 = 36,428.80/x
  3. Step 3: Cross multiply
    45,604.48x = 68,406.76 × 36,428.80
  4. Step 4: Simplify right side
    45,604.48x = 2,491,976,178.69
  5. Step 5: Solve for x
    x = 2,491,976,178.69/45,604.48
  6. Step 6: Final answer
    x = 54,643.23

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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.