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Finding the Fourth Proportional to 69,012.71, 95,230.96 and 40,339.08

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Solution

The fourth proportional to 69,012.71, 95,230.96 and 40,339.08 is: 55,664.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,012.71 : 95,230.96 = 40,339.08 : x
  2. Step 2: Convert to fraction form
    69,012.71/95,230.96 = 40,339.08/x
  3. Step 3: Cross multiply
    69,012.71x = 95,230.96 × 40,339.08
  4. Step 4: Simplify right side
    69,012.71x = 3,841,529,213.07
  5. Step 5: Solve for x
    x = 3,841,529,213.07/69,012.71
  6. Step 6: Final answer
    x = 55,664.08

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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.