Home / 69,987.07-104,959.07-20,053.79

Finding the Fourth Proportional to 69,987.07, 104,959.07 and 20,053.79

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Solution

The fourth proportional to 69,987.07, 104,959.07 and 20,053.79 is: 30,074.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,987.07 : 104,959.07 = 20,053.79 : x
  2. Step 2: Convert to fraction form
    69,987.07/104,959.07 = 20,053.79/x
  3. Step 3: Cross multiply
    69,987.07x = 104,959.07 × 20,053.79
  4. Step 4: Simplify right side
    69,987.07x = 2,104,826,523.31
  5. Step 5: Solve for x
    x = 2,104,826,523.31/69,987.07
  6. Step 6: Final answer
    x = 30,074.51

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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.