Home / 65,790.21-98,691.54-18,405.32

Finding the Fourth Proportional to 65,790.21, 98,691.54 and 18,405.32

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Solution

The fourth proportional to 65,790.21, 98,691.54 and 18,405.32 is: 27,609.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,790.21 : 98,691.54 = 18,405.32 : x
  2. Step 2: Convert to fraction form
    65,790.21/98,691.54 = 18,405.32/x
  3. Step 3: Cross multiply
    65,790.21x = 98,691.54 × 18,405.32
  4. Step 4: Simplify right side
    65,790.21x = 1,816,448,881.54
  5. Step 5: Solve for x
    x = 1,816,448,881.54/65,790.21
  6. Step 6: Final answer
    x = 27,609.71

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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.