Home / 72,412.16-108,625.92-30,863.36

Finding the Fourth Proportional to 72,412.16, 108,625.92 and 30,863.36

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Solution

The fourth proportional to 72,412.16, 108,625.92 and 30,863.36 is: 46,298.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,412.16 : 108,625.92 = 30,863.36 : x
  2. Step 2: Convert to fraction form
    72,412.16/108,625.92 = 30,863.36/x
  3. Step 3: Cross multiply
    72,412.16x = 108,625.92 × 30,863.36
  4. Step 4: Simplify right side
    72,412.16x = 3,352,560,874.29
  5. Step 5: Solve for x
    x = 3,352,560,874.29/72,412.16
  6. Step 6: Final answer
    x = 46,298.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.