Home / 69,028.51-103,542.92-19,108.75

Finding the Fourth Proportional to 69,028.51, 103,542.92 and 19,108.75

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Solution

The fourth proportional to 69,028.51, 103,542.92 and 19,108.75 is: 28,663.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,028.51 : 103,542.92 = 19,108.75 : x
  2. Step 2: Convert to fraction form
    69,028.51/103,542.92 = 19,108.75/x
  3. Step 3: Cross multiply
    69,028.51x = 103,542.92 × 19,108.75
  4. Step 4: Simplify right side
    69,028.51x = 1,978,575,772.55
  5. Step 5: Solve for x
    x = 1,978,575,772.55/69,028.51
  6. Step 6: Final answer
    x = 28,663.17

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1.5x scale

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.