Home / 65,876.48-90,909.43-35,661.79

Finding the Fourth Proportional to 65,876.48, 90,909.43 and 35,661.79

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Solution

The fourth proportional to 65,876.48, 90,909.43 and 35,661.79 is: 49,213.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,876.48 : 90,909.43 = 35,661.79 : x
  2. Step 2: Convert to fraction form
    65,876.48/90,909.43 = 35,661.79/x
  3. Step 3: Cross multiply
    65,876.48x = 90,909.43 × 35,661.79
  4. Step 4: Simplify right side
    65,876.48x = 3,241,993,021.77
  5. Step 5: Solve for x
    x = 3,241,993,021.77/65,876.48
  6. Step 6: Final answer
    x = 49,213.21

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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.