Home / 45,237.19-67,886.91-20,305.12

Finding the Fourth Proportional to 45,237.19, 67,886.91 and 20,305.12

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Solution

The fourth proportional to 45,237.19, 67,886.91 and 20,305.12 is: 30,471.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,237.19 : 67,886.91 = 20,305.12 : x
  2. Step 2: Convert to fraction form
    45,237.19/67,886.91 = 20,305.12/x
  3. Step 3: Cross multiply
    45,237.19x = 67,886.91 × 20,305.12
  4. Step 4: Simplify right side
    45,237.19x = 1,378,451,853.98
  5. Step 5: Solve for x
    x = 1,378,451,853.98/45,237.19
  6. Step 6: Final answer
    x = 30,471.65

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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.