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Finding the Fourth Proportional to 45,254.70, 67,881.71 and 13,664.70

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Solution

The fourth proportional to 45,254.70, 67,881.71 and 13,664.70 is: 20,496.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,254.70 : 67,881.71 = 13,664.70 : x
  2. Step 2: Convert to fraction form
    45,254.70/67,881.71 = 13,664.70/x
  3. Step 3: Cross multiply
    45,254.70x = 67,881.71 × 13,664.70
  4. Step 4: Simplify right side
    45,254.70x = 927,583,236.80
  5. Step 5: Solve for x
    x = 927,583,236.80/45,254.70
  6. Step 6: Final answer
    x = 20,496.95

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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.