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Finding the Fourth Proportional to 72,371.37, 99,879.86 and 41,745.63

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Solution

The fourth proportional to 72,371.37, 99,879.86 and 41,745.63 is: 57,613.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,371.37 : 99,879.86 = 41,745.63 : x
  2. Step 2: Convert to fraction form
    72,371.37/99,879.86 = 41,745.63/x
  3. Step 3: Cross multiply
    72,371.37x = 99,879.86 × 41,745.63
  4. Step 4: Simplify right side
    72,371.37x = 4,169,547,471.28
  5. Step 5: Solve for x
    x = 4,169,547,471.28/72,371.37
  6. Step 6: Final answer
    x = 57,613.22

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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.