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Finding the Fourth Proportional to 69,683.51, 96,203.13 and 45,879.38

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Solution

The fourth proportional to 69,683.51, 96,203.13 and 45,879.38 is: 63,339.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,683.51 : 96,203.13 = 45,879.38 : x
  2. Step 2: Convert to fraction form
    69,683.51/96,203.13 = 45,879.38/x
  3. Step 3: Cross multiply
    69,683.51x = 96,203.13 × 45,879.38
  4. Step 4: Simplify right side
    69,683.51x = 4,413,739,477.44
  5. Step 5: Solve for x
    x = 4,413,739,477.44/69,683.51
  6. Step 6: Final answer
    x = 63,339.80

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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.