Home / 45,113.92-67,674.12-13,945.12

Finding the Fourth Proportional to 45,113.92, 67,674.12 and 13,945.12

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Solution

The fourth proportional to 45,113.92, 67,674.12 and 13,945.12 is: 20,918.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,113.92 : 67,674.12 = 13,945.12 : x
  2. Step 2: Convert to fraction form
    45,113.92/67,674.12 = 13,945.12/x
  3. Step 3: Cross multiply
    45,113.92x = 67,674.12 × 13,945.12
  4. Step 4: Simplify right side
    45,113.92x = 943,723,724.29
  5. Step 5: Solve for x
    x = 943,723,724.29/45,113.92
  6. Step 6: Final answer
    x = 20,918.68

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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.