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Finding the Fourth Proportional to 65,626.98, 90,564.14 and 36,555

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Solution

The fourth proportional to 65,626.98, 90,564.14 and 36,555 is: 50,445.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,626.98 : 90,564.14 = 36,555 : x
  2. Step 2: Convert to fraction form
    65,626.98/90,564.14 = 36,555/x
  3. Step 3: Cross multiply
    65,626.98x = 90,564.14 × 36,555
  4. Step 4: Simplify right side
    65,626.98x = 3,310,572,137.70
  5. Step 5: Solve for x
    x = 3,310,572,137.70/65,626.98
  6. Step 6: Final answer
    x = 50,445.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.