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Finding the Fourth Proportional to 69,015.71, 95,235.09 and 40,342.08

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Solution

The fourth proportional to 69,015.71, 95,235.09 and 40,342.08 is: 55,668.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,015.71 : 95,235.09 = 40,342.08 : x
  2. Step 2: Convert to fraction form
    69,015.71/95,235.09 = 40,342.08/x
  3. Step 3: Cross multiply
    69,015.71x = 95,235.09 × 40,342.08
  4. Step 4: Simplify right side
    69,015.71x = 3,841,981,619.59
  5. Step 5: Solve for x
    x = 3,841,981,619.59/69,015.71
  6. Step 6: Final answer
    x = 55,668.22

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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.