Home / 71,129.07-106,693.61-21,244.21

Finding the Fourth Proportional to 71,129.07, 106,693.61 and 21,244.21

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Solution

The fourth proportional to 71,129.07, 106,693.61 and 21,244.21 is: 31,866.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,129.07 : 106,693.61 = 21,244.21 : x
  2. Step 2: Convert to fraction form
    71,129.07/106,693.61 = 21,244.21/x
  3. Step 3: Cross multiply
    71,129.07x = 106,693.61 × 21,244.21
  4. Step 4: Simplify right side
    71,129.07x = 2,266,621,083.54
  5. Step 5: Solve for x
    x = 2,266,621,083.54/71,129.07
  6. Step 6: Final answer
    x = 31,866.31

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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.