Home / 71,041.64-106,562.43-21,121.52

Finding the Fourth Proportional to 71,041.64, 106,562.43 and 21,121.52

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Solution

The fourth proportional to 71,041.64, 106,562.43 and 21,121.52 is: 31,682.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,041.64 : 106,562.43 = 21,121.52 : x
  2. Step 2: Convert to fraction form
    71,041.64/106,562.43 = 21,121.52/x
  3. Step 3: Cross multiply
    71,041.64x = 106,562.43 × 21,121.52
  4. Step 4: Simplify right side
    71,041.64x = 2,250,760,496.49
  5. Step 5: Solve for x
    x = 2,250,760,496.49/71,041.64
  6. Step 6: Final answer
    x = 31,682.27

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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.