Home / 45,209.17-67,826.99-20,243.65

Finding the Fourth Proportional to 45,209.17, 67,826.99 and 20,243.65

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Solution

The fourth proportional to 45,209.17, 67,826.99 and 20,243.65 is: 30,371.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,209.17 : 67,826.99 = 20,243.65 : x
  2. Step 2: Convert to fraction form
    45,209.17/67,826.99 = 20,243.65/x
  3. Step 3: Cross multiply
    45,209.17x = 67,826.99 × 20,243.65
  4. Step 4: Simplify right side
    45,209.17x = 1,373,065,846.11
  5. Step 5: Solve for x
    x = 1,373,065,846.11/45,209.17
  6. Step 6: Final answer
    x = 30,371.40

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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.