Home / 65,921.13-98,887.55-18,536.64

Finding the Fourth Proportional to 65,921.13, 98,887.55 and 18,536.64

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Solution

The fourth proportional to 65,921.13, 98,887.55 and 18,536.64 is: 27,806.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,921.13 : 98,887.55 = 18,536.64 : x
  2. Step 2: Convert to fraction form
    65,921.13/98,887.55 = 18,536.64/x
  3. Step 3: Cross multiply
    65,921.13x = 98,887.55 × 18,536.64
  4. Step 4: Simplify right side
    65,921.13x = 1,833,042,822.15
  5. Step 5: Solve for x
    x = 1,833,042,822.15/65,921.13
  6. Step 6: Final answer
    x = 27,806.60

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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.