Home / 65,406.38-98,110.49-18,659.25

Finding the Fourth Proportional to 65,406.38, 98,110.49 and 18,659.25

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Solution

The fourth proportional to 65,406.38, 98,110.49 and 18,659.25 is: 27,989.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,406.38 : 98,110.49 = 18,659.25 : x
  2. Step 2: Convert to fraction form
    65,406.38/98,110.49 = 18,659.25/x
  3. Step 3: Cross multiply
    65,406.38x = 98,110.49 × 18,659.25
  4. Step 4: Simplify right side
    65,406.38x = 1,830,668,067.24
  5. Step 5: Solve for x
    x = 1,830,668,067.24/65,406.38
  6. Step 6: Final answer
    x = 27,989.14

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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.