Home / 69,021.20-103,534.10-19,097.12

Finding the Fourth Proportional to 69,021.20, 103,534.10 and 19,097.12

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Solution

The fourth proportional to 69,021.20, 103,534.10 and 19,097.12 is: 28,646.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,021.20 : 103,534.10 = 19,097.12 : x
  2. Step 2: Convert to fraction form
    69,021.20/103,534.10 = 19,097.12/x
  3. Step 3: Cross multiply
    69,021.20x = 103,534.10 × 19,097.12
  4. Step 4: Simplify right side
    69,021.20x = 1,977,203,131.79
  5. Step 5: Solve for x
    x = 1,977,203,131.79/69,021.20
  6. Step 6: Final answer
    x = 28,646.32

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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.