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Finding the Fourth Proportional to 67,237.20, 100,855.80 and 43,736.40

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Solution

The fourth proportional to 67,237.20, 100,855.80 and 43,736.40 is: 65,604.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,237.20 : 100,855.80 = 43,736.40 : x
  2. Step 2: Convert to fraction form
    67,237.20/100,855.80 = 43,736.40/x
  3. Step 3: Cross multiply
    67,237.20x = 100,855.80 × 43,736.40
  4. Step 4: Simplify right side
    67,237.20x = 4,411,069,611.12
  5. Step 5: Solve for x
    x = 4,411,069,611.12/67,237.20
  6. Step 6: Final answer
    x = 65,604.60

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1.5x scale

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.