Home / 45,209.73-67,811.86-20,243.07

Finding the Fourth Proportional to 45,209.73, 67,811.86 and 20,243.07

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Solution

The fourth proportional to 45,209.73, 67,811.86 and 20,243.07 is: 30,363.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,209.73 : 67,811.86 = 20,243.07 : x
  2. Step 2: Convert to fraction form
    45,209.73/67,811.86 = 20,243.07/x
  3. Step 3: Cross multiply
    45,209.73x = 67,811.86 × 20,243.07
  4. Step 4: Simplify right side
    45,209.73x = 1,372,720,140.25
  5. Step 5: Solve for x
    x = 1,372,720,140.25/45,209.73
  6. Step 6: Final answer
    x = 30,363.38

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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.