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Finding the Fourth Proportional to 65,677.79, 98,532.35 and 21,304.64

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Solution

The fourth proportional to 65,677.79, 98,532.35 and 21,304.64 is: 31,962.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,677.79 : 98,532.35 = 21,304.64 : x
  2. Step 2: Convert to fraction form
    65,677.79/98,532.35 = 21,304.64/x
  3. Step 3: Cross multiply
    65,677.79x = 98,532.35 × 21,304.64
  4. Step 4: Simplify right side
    65,677.79x = 2,099,196,464.80
  5. Step 5: Solve for x
    x = 2,099,196,464.80/65,677.79
  6. Step 6: Final answer
    x = 31,962.04

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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.