Home / 45,461.08-68,191.49-20,471.87

Finding the Fourth Proportional to 45,461.08, 68,191.49 and 20,471.87

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Solution

The fourth proportional to 45,461.08, 68,191.49 and 20,471.87 is: 30,707.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,461.08 : 68,191.49 = 20,471.87 : x
  2. Step 2: Convert to fraction form
    45,461.08/68,191.49 = 20,471.87/x
  3. Step 3: Cross multiply
    45,461.08x = 68,191.49 × 20,471.87
  4. Step 4: Simplify right side
    45,461.08x = 1,396,007,216.03
  5. Step 5: Solve for x
    x = 1,396,007,216.03/45,461.08
  6. Step 6: Final answer
    x = 30,707.74

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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.