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Finding the Fourth Proportional to 65,841.51, 90,860.64 and 35,626.18

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Solution

The fourth proportional to 65,841.51, 90,860.64 and 35,626.18 is: 49,163.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,841.51 : 90,860.64 = 35,626.18 : x
  2. Step 2: Convert to fraction form
    65,841.51/90,860.64 = 35,626.18/x
  3. Step 3: Cross multiply
    65,841.51x = 90,860.64 × 35,626.18
  4. Step 4: Simplify right side
    65,841.51x = 3,237,017,325.17
  5. Step 5: Solve for x
    x = 3,237,017,325.17/65,841.51
  6. Step 6: Final answer
    x = 49,163.78

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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.