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Finding the Fourth Proportional to 65,817.42, 98,733.08 and 21,447.64

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Solution

The fourth proportional to 65,817.42, 98,733.08 and 21,447.64 is: 32,173.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,817.42 : 98,733.08 = 21,447.64 : x
  2. Step 2: Convert to fraction form
    65,817.42/98,733.08 = 21,447.64/x
  3. Step 3: Cross multiply
    65,817.42x = 98,733.08 × 21,447.64
  4. Step 4: Simplify right side
    65,817.42x = 2,117,591,555.93
  5. Step 5: Solve for x
    x = 2,117,591,555.93/65,817.42
  6. Step 6: Final answer
    x = 32,173.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.