Home / 65,883.48-90,919.09-35,668.79

Finding the Fourth Proportional to 65,883.48, 90,919.09 and 35,668.79

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Solution

The fourth proportional to 65,883.48, 90,919.09 and 35,668.79 is: 49,222.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,883.48 : 90,919.09 = 35,668.79 : x
  2. Step 2: Convert to fraction form
    65,883.48/90,919.09 = 35,668.79/x
  3. Step 3: Cross multiply
    65,883.48x = 90,919.09 × 35,668.79
  4. Step 4: Simplify right side
    65,883.48x = 3,242,973,928.20
  5. Step 5: Solve for x
    x = 3,242,973,928.20/65,883.48
  6. Step 6: Final answer
    x = 49,222.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.