Home / 45,039.39-67,568.81-18,763.80

Finding the Fourth Proportional to 45,039.39, 67,568.81 and 18,763.80

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Solution

The fourth proportional to 45,039.39, 67,568.81 and 18,763.80 is: 28,149.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,039.39 : 67,568.81 = 18,763.80 : x
  2. Step 2: Convert to fraction form
    45,039.39/67,568.81 = 18,763.80/x
  3. Step 3: Cross multiply
    45,039.39x = 67,568.81 × 18,763.80
  4. Step 4: Simplify right side
    45,039.39x = 1,267,847,543.26
  5. Step 5: Solve for x
    x = 1,267,847,543.26/45,039.39
  6. Step 6: Final answer
    x = 28,149.75

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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.