Home / 45,122.94-67,706.28-21,426.80

Finding the Fourth Proportional to 45,122.94, 67,706.28 and 21,426.80

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Solution

The fourth proportional to 45,122.94, 67,706.28 and 21,426.80 is: 32,150.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,122.94 : 67,706.28 = 21,426.80 : x
  2. Step 2: Convert to fraction form
    45,122.94/67,706.28 = 21,426.80/x
  3. Step 3: Cross multiply
    45,122.94x = 67,706.28 × 21,426.80
  4. Step 4: Simplify right side
    45,122.94x = 1,450,728,581.77
  5. Step 5: Solve for x
    x = 1,450,728,581.77/45,122.94
  6. Step 6: Final answer
    x = 32,150.58

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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.