Home / 69,054.48-103,587.72-19,134.60

Finding the Fourth Proportional to 69,054.48, 103,587.72 and 19,134.60

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Solution

The fourth proportional to 69,054.48, 103,587.72 and 19,134.60 is: 28,703.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,054.48 : 103,587.72 = 19,134.60 : x
  2. Step 2: Convert to fraction form
    69,054.48/103,587.72 = 19,134.60/x
  3. Step 3: Cross multiply
    69,054.48x = 103,587.72 × 19,134.60
  4. Step 4: Simplify right side
    69,054.48x = 1,982,109,587.11
  5. Step 5: Solve for x
    x = 1,982,109,587.11/69,054.48
  6. Step 6: Final answer
    x = 28,703.56

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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.