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Finding the Fourth Proportional to 67,702.14, 101,565 and 28,286.91

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Solution

The fourth proportional to 67,702.14, 101,565 and 28,286.91 is: 42,435.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,702.14 : 101,565 = 28,286.91 : x
  2. Step 2: Convert to fraction form
    67,702.14/101,565 = 28,286.91/x
  3. Step 3: Cross multiply
    67,702.14x = 101,565 × 28,286.91
  4. Step 4: Simplify right side
    67,702.14x = 2,872,960,014.15
  5. Step 5: Solve for x
    x = 2,872,960,014.15/67,702.14
  6. Step 6: Final answer
    x = 42,435.29

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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.