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Finding the Fourth Proportional to 65,589.17, 90,520.02 and 40,110.44

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Solution

The fourth proportional to 65,589.17, 90,520.02 and 40,110.44 is: 55,356.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,589.17 : 90,520.02 = 40,110.44 : x
  2. Step 2: Convert to fraction form
    65,589.17/90,520.02 = 40,110.44/x
  3. Step 3: Cross multiply
    65,589.17x = 90,520.02 × 40,110.44
  4. Step 4: Simplify right side
    65,589.17x = 3,630,797,378.41
  5. Step 5: Solve for x
    x = 3,630,797,378.41/65,589.17
  6. Step 6: Final answer
    x = 55,356.66

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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.