Home / 74,511.56-111,767.16-21,920.96

Finding the Fourth Proportional to 74,511.56, 111,767.16 and 21,920.96

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Solution

The fourth proportional to 74,511.56, 111,767.16 and 21,920.96 is: 32,881.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,511.56 : 111,767.16 = 21,920.96 : x
  2. Step 2: Convert to fraction form
    74,511.56/111,767.16 = 21,920.96/x
  3. Step 3: Cross multiply
    74,511.56x = 111,767.16 × 21,920.96
  4. Step 4: Simplify right side
    74,511.56x = 2,450,043,443.67
  5. Step 5: Solve for x
    x = 2,450,043,443.67/74,511.56
  6. Step 6: Final answer
    x = 32,881.39

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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.