Home / 71,623.60-107,435.40-21,701.24

Finding the Fourth Proportional to 71,623.60, 107,435.40 and 21,701.24

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Solution

The fourth proportional to 71,623.60, 107,435.40 and 21,701.24 is: 32,551.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,623.60 : 107,435.40 = 21,701.24 : x
  2. Step 2: Convert to fraction form
    71,623.60/107,435.40 = 21,701.24/x
  3. Step 3: Cross multiply
    71,623.60x = 107,435.40 × 21,701.24
  4. Step 4: Simplify right side
    71,623.60x = 2,331,481,399.90
  5. Step 5: Solve for x
    x = 2,331,481,399.90/71,623.60
  6. Step 6: Final answer
    x = 32,551.86

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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.