Home / 69,009.36-103,514.40-19,089.60

Finding the Fourth Proportional to 69,009.36, 103,514.40 and 19,089.60

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Solution

The fourth proportional to 69,009.36, 103,514.40 and 19,089.60 is: 28,634.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,009.36 : 103,514.40 = 19,089.60 : x
  2. Step 2: Convert to fraction form
    69,009.36/103,514.40 = 19,089.60/x
  3. Step 3: Cross multiply
    69,009.36x = 103,514.40 × 19,089.60
  4. Step 4: Simplify right side
    69,009.36x = 1,976,048,490.24
  5. Step 5: Solve for x
    x = 1,976,048,490.24/69,009.36
  6. Step 6: Final answer
    x = 28,634.50

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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.