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Finding the Fourth Proportional to 43,702.62, 65,554 and 18,726.48

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Solution

The fourth proportional to 43,702.62, 65,554 and 18,726.48 is: 28,089.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,702.62 : 65,554 = 18,726.48 : x
  2. Step 2: Convert to fraction form
    43,702.62/65,554 = 18,726.48/x
  3. Step 3: Cross multiply
    43,702.62x = 65,554 × 18,726.48
  4. Step 4: Simplify right side
    43,702.62x = 1,227,595,669.92
  5. Step 5: Solve for x
    x = 1,227,595,669.92/43,702.62
  6. Step 6: Final answer
    x = 28,089.75

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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.