Home / 45,168.21-67,664.84-21,811.05

Finding the Fourth Proportional to 45,168.21, 67,664.84 and 21,811.05

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Solution

The fourth proportional to 45,168.21, 67,664.84 and 21,811.05 is: 32,674.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,168.21 : 67,664.84 = 21,811.05 : x
  2. Step 2: Convert to fraction form
    45,168.21/67,664.84 = 21,811.05/x
  3. Step 3: Cross multiply
    45,168.21x = 67,664.84 × 21,811.05
  4. Step 4: Simplify right side
    45,168.21x = 1,475,841,099.43
  5. Step 5: Solve for x
    x = 1,475,841,099.43/45,168.21
  6. Step 6: Final answer
    x = 32,674.33

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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.