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Finding the Fourth Proportional to 45,969.52, 68,958.27 and 12,689.59

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Solution

The fourth proportional to 45,969.52, 68,958.27 and 12,689.59 is: 19,035.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,969.52 : 68,958.27 = 12,689.59 : x
  2. Step 2: Convert to fraction form
    45,969.52/68,958.27 = 12,689.59/x
  3. Step 3: Cross multiply
    45,969.52x = 68,958.27 × 12,689.59
  4. Step 4: Simplify right side
    45,969.52x = 875,052,173.41
  5. Step 5: Solve for x
    x = 875,052,173.41/45,969.52
  6. Step 6: Final answer
    x = 19,035.49

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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.