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Finding the Fourth Proportional to 67,263.42, 100,842.80 and 43,520.80

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Solution

The fourth proportional to 67,263.42, 100,842.80 and 43,520.80 is: 65,247.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,263.42 : 100,842.80 = 43,520.80 : x
  2. Step 2: Convert to fraction form
    67,263.42/100,842.80 = 43,520.80/x
  3. Step 3: Cross multiply
    67,263.42x = 100,842.80 × 43,520.80
  4. Step 4: Simplify right side
    67,263.42x = 4,388,759,330.24
  5. Step 5: Solve for x
    x = 4,388,759,330.24/67,263.42
  6. Step 6: Final answer
    x = 65,247.34

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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.