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Finding the Fourth Proportional to 67,801.86, 101,705.22 and 28,304.64

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Solution

The fourth proportional to 67,801.86, 101,705.22 and 28,304.64 is: 42,457.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,801.86 : 101,705.22 = 28,304.64 : x
  2. Step 2: Convert to fraction form
    67,801.86/101,705.22 = 28,304.64/x
  3. Step 3: Cross multiply
    67,801.86x = 101,705.22 × 28,304.64
  4. Step 4: Simplify right side
    67,801.86x = 2,878,729,638.22
  5. Step 5: Solve for x
    x = 2,878,729,638.22/67,801.86
  6. Step 6: Final answer
    x = 42,457.97

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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.