Home / 71,272.96-106,901.22-18,686.62

Finding the Fourth Proportional to 71,272.96, 106,901.22 and 18,686.62

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Solution

The fourth proportional to 71,272.96, 106,901.22 and 18,686.62 is: 28,027.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,272.96 : 106,901.22 = 18,686.62 : x
  2. Step 2: Convert to fraction form
    71,272.96/106,901.22 = 18,686.62/x
  3. Step 3: Cross multiply
    71,272.96x = 106,901.22 × 18,686.62
  4. Step 4: Simplify right side
    71,272.96x = 1,997,622,475.68
  5. Step 5: Solve for x
    x = 1,997,622,475.68/71,272.96
  6. Step 6: Final answer
    x = 28,027.77

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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.