Home / 65,145.03-97,733.46-20,771.79

Finding the Fourth Proportional to 65,145.03, 97,733.46 and 20,771.79

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Solution

The fourth proportional to 65,145.03, 97,733.46 and 20,771.79 is: 31,162.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,145.03 : 97,733.46 = 20,771.79 : x
  2. Step 2: Convert to fraction form
    65,145.03/97,733.46 = 20,771.79/x
  3. Step 3: Cross multiply
    65,145.03x = 97,733.46 × 20,771.79
  4. Step 4: Simplify right side
    65,145.03x = 2,030,099,109.82
  5. Step 5: Solve for x
    x = 2,030,099,109.82/65,145.03
  6. Step 6: Final answer
    x = 31,162.76

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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.