Home / 45,316.75-67,989.57-19,014.43

Finding the Fourth Proportional to 45,316.75, 67,989.57 and 19,014.43

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Solution

The fourth proportional to 45,316.75, 67,989.57 and 19,014.43 is: 28,527.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,316.75 : 67,989.57 = 19,014.43 : x
  2. Step 2: Convert to fraction form
    45,316.75/67,989.57 = 19,014.43/x
  3. Step 3: Cross multiply
    45,316.75x = 67,989.57 × 19,014.43
  4. Step 4: Simplify right side
    45,316.75x = 1,292,782,919.50
  5. Step 5: Solve for x
    x = 1,292,782,919.50/45,316.75
  6. Step 6: Final answer
    x = 28,527.71

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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.