Home / 45,118.76-67,676.73-21,443.35

Finding the Fourth Proportional to 45,118.76, 67,676.73 and 21,443.35

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Solution

The fourth proportional to 45,118.76, 67,676.73 and 21,443.35 is: 32,164.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,118.76 : 67,676.73 = 21,443.35 : x
  2. Step 2: Convert to fraction form
    45,118.76/67,676.73 = 21,443.35/x
  3. Step 3: Cross multiply
    45,118.76x = 67,676.73 × 21,443.35
  4. Step 4: Simplify right side
    45,118.76x = 1,451,215,806.15
  5. Step 5: Solve for x
    x = 1,451,215,806.15/45,118.76
  6. Step 6: Final answer
    x = 32,164.36

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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.