Home / 71,945.52-107,918.40-19,353.60

Finding the Fourth Proportional to 71,945.52, 107,918.40 and 19,353.60

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Solution

The fourth proportional to 71,945.52, 107,918.40 and 19,353.60 is: 29,030.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,945.52 : 107,918.40 = 19,353.60 : x
  2. Step 2: Convert to fraction form
    71,945.52/107,918.40 = 19,353.60/x
  3. Step 3: Cross multiply
    71,945.52x = 107,918.40 × 19,353.60
  4. Step 4: Simplify right side
    71,945.52x = 2,088,609,546.24
  5. Step 5: Solve for x
    x = 2,088,609,546.24/71,945.52
  6. Step 6: Final answer
    x = 29,030.43

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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.