Home / 71,628.14-107,443.20-19,037.36

Finding the Fourth Proportional to 71,628.14, 107,443.20 and 19,037.36

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Solution

The fourth proportional to 71,628.14, 107,443.20 and 19,037.36 is: 28,556.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,628.14 : 107,443.20 = 19,037.36 : x
  2. Step 2: Convert to fraction form
    71,628.14/107,443.20 = 19,037.36/x
  3. Step 3: Cross multiply
    71,628.14x = 107,443.20 × 19,037.36
  4. Step 4: Simplify right side
    71,628.14x = 2,045,434,877.95
  5. Step 5: Solve for x
    x = 2,045,434,877.95/71,628.14
  6. Step 6: Final answer
    x = 28,556.30

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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.