Home / 45,506.32-68,212.70-17,419.78

Finding the Fourth Proportional to 45,506.32, 68,212.70 and 17,419.78

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Solution

The fourth proportional to 45,506.32, 68,212.70 and 17,419.78 is: 26,111.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,506.32 : 68,212.70 = 17,419.78 : x
  2. Step 2: Convert to fraction form
    45,506.32/68,212.70 = 17,419.78/x
  3. Step 3: Cross multiply
    45,506.32x = 68,212.70 × 17,419.78
  4. Step 4: Simplify right side
    45,506.32x = 1,188,250,227.21
  5. Step 5: Solve for x
    x = 1,188,250,227.21/45,506.32
  6. Step 6: Final answer
    x = 26,111.76

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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.