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Finding the Fourth Proportional to 65,351.75, 90,185.43 and 35,543.75

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Solution

The fourth proportional to 65,351.75, 90,185.43 and 35,543.75 is: 49,050.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,351.75 : 90,185.43 = 35,543.75 : x
  2. Step 2: Convert to fraction form
    65,351.75/90,185.43 = 35,543.75/x
  3. Step 3: Cross multiply
    65,351.75x = 90,185.43 × 35,543.75
  4. Step 4: Simplify right side
    65,351.75x = 3,205,528,377.56
  5. Step 5: Solve for x
    x = 3,205,528,377.56/65,351.75
  6. Step 6: Final answer
    x = 49,050.38

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1.5x scale

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.