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Finding the Fourth Proportional to 68,879.78, 95,029.65 and 45,020.23

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Solution

The fourth proportional to 68,879.78, 95,029.65 and 45,020.23 is: 62,111.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,879.78 : 95,029.65 = 45,020.23 : x
  2. Step 2: Convert to fraction form
    68,879.78/95,029.65 = 45,020.23/x
  3. Step 3: Cross multiply
    68,879.78x = 95,029.65 × 45,020.23
  4. Step 4: Simplify right side
    68,879.78x = 4,278,256,224.67
  5. Step 5: Solve for x
    x = 4,278,256,224.67/68,879.78
  6. Step 6: Final answer
    x = 62,111.93

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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.