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Finding the Fourth Proportional to 69,309.88, 95,668.09 and 40,635.77

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Solution

The fourth proportional to 69,309.88, 95,668.09 and 40,635.77 is: 56,089.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,309.88 : 95,668.09 = 40,635.77 : x
  2. Step 2: Convert to fraction form
    69,309.88/95,668.09 = 40,635.77/x
  3. Step 3: Cross multiply
    69,309.88x = 95,668.09 × 40,635.77
  4. Step 4: Simplify right side
    69,309.88x = 3,887,546,190.72
  5. Step 5: Solve for x
    x = 3,887,546,190.72/69,309.88
  6. Step 6: Final answer
    x = 56,089.35

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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.