Home / 45,136.92-67,706.94-21,432.26

Finding the Fourth Proportional to 45,136.92, 67,706.94 and 21,432.26

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Solution

The fourth proportional to 45,136.92, 67,706.94 and 21,432.26 is: 32,149.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,136.92 : 67,706.94 = 21,432.26 : x
  2. Step 2: Convert to fraction form
    45,136.92/67,706.94 = 21,432.26/x
  3. Step 3: Cross multiply
    45,136.92x = 67,706.94 × 21,432.26
  4. Step 4: Simplify right side
    45,136.92x = 1,451,112,741.88
  5. Step 5: Solve for x
    x = 1,451,112,741.88/45,136.92
  6. Step 6: Final answer
    x = 32,149.13

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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.