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Finding the Fourth Proportional to 65,367.87, 90,200.22 and 36,681.60

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Solution

The fourth proportional to 65,367.87, 90,200.22 and 36,681.60 is: 50,616.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,367.87 : 90,200.22 = 36,681.60 : x
  2. Step 2: Convert to fraction form
    65,367.87/90,200.22 = 36,681.60/x
  3. Step 3: Cross multiply
    65,367.87x = 90,200.22 × 36,681.60
  4. Step 4: Simplify right side
    65,367.87x = 3,308,688,389.95
  5. Step 5: Solve for x
    x = 3,308,688,389.95/65,367.87
  6. Step 6: Final answer
    x = 50,616.43

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1.5x scale

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.