Home / 45,081.18-67,579.92-21,399.84

Finding the Fourth Proportional to 45,081.18, 67,579.92 and 21,399.84

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Solution

The fourth proportional to 45,081.18, 67,579.92 and 21,399.84 is: 32,079.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,081.18 : 67,579.92 = 21,399.84 : x
  2. Step 2: Convert to fraction form
    45,081.18/67,579.92 = 21,399.84/x
  3. Step 3: Cross multiply
    45,081.18x = 67,579.92 × 21,399.84
  4. Step 4: Simplify right side
    45,081.18x = 1,446,199,475.21
  5. Step 5: Solve for x
    x = 1,446,199,475.21/45,081.18
  6. Step 6: Final answer
    x = 32,079.89

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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.