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Finding the Fourth Proportional to 65,841.55, 90,860.68 and 35,626.21

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Solution

The fourth proportional to 65,841.55, 90,860.68 and 35,626.21 is: 49,163.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,841.55 : 90,860.68 = 35,626.21 : x
  2. Step 2: Convert to fraction form
    65,841.55/90,860.68 = 35,626.21/x
  3. Step 3: Cross multiply
    65,841.55x = 90,860.68 × 35,626.21
  4. Step 4: Simplify right side
    65,841.55x = 3,237,021,483.80
  5. Step 5: Solve for x
    x = 3,237,021,483.80/65,841.55
  6. Step 6: Final answer
    x = 49,163.81

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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.