Home / 76,531.96-114,804.42-21,127.96

Finding the Fourth Proportional to 76,531.96, 114,804.42 and 21,127.96

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Solution

The fourth proportional to 76,531.96, 114,804.42 and 21,127.96 is: 31,693.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,531.96 : 114,804.42 = 21,127.96 : x
  2. Step 2: Convert to fraction form
    76,531.96/114,804.42 = 21,127.96/x
  3. Step 3: Cross multiply
    76,531.96x = 114,804.42 × 21,127.96
  4. Step 4: Simplify right side
    76,531.96x = 2,425,583,193.58
  5. Step 5: Solve for x
    x = 2,425,583,193.58/76,531.96
  6. Step 6: Final answer
    x = 31,693.73

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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.