Home / 65,863.80-98,805.36-19,110.60

Finding the Fourth Proportional to 65,863.80, 98,805.36 and 19,110.60

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Solution

The fourth proportional to 65,863.80, 98,805.36 and 19,110.60 is: 28,668.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,863.80 : 98,805.36 = 19,110.60 : x
  2. Step 2: Convert to fraction form
    65,863.80/98,805.36 = 19,110.60/x
  3. Step 3: Cross multiply
    65,863.80x = 98,805.36 × 19,110.60
  4. Step 4: Simplify right side
    65,863.80x = 1,888,229,712.82
  5. Step 5: Solve for x
    x = 1,888,229,712.82/65,863.80
  6. Step 6: Final answer
    x = 28,668.70

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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.