Home / 65,403.38-98,105.99-18,656.25

Finding the Fourth Proportional to 65,403.38, 98,105.99 and 18,656.25

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Solution

The fourth proportional to 65,403.38, 98,105.99 and 18,656.25 is: 27,984.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,403.38 : 98,105.99 = 18,656.25 : x
  2. Step 2: Convert to fraction form
    65,403.38/98,105.99 = 18,656.25/x
  3. Step 3: Cross multiply
    65,403.38x = 98,105.99 × 18,656.25
  4. Step 4: Simplify right side
    65,403.38x = 1,830,289,782.66
  5. Step 5: Solve for x
    x = 1,830,289,782.66/65,403.38
  6. Step 6: Final answer
    x = 27,984.64

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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.