Home / 81,776.08-122,625.96-29,173.24

Finding the Fourth Proportional to 81,776.08, 122,625.96 and 29,173.24

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Solution

The fourth proportional to 81,776.08, 122,625.96 and 29,173.24 is: 43,746.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,776.08 : 122,625.96 = 29,173.24 : x
  2. Step 2: Convert to fraction form
    81,776.08/122,625.96 = 29,173.24/x
  3. Step 3: Cross multiply
    81,776.08x = 122,625.96 × 29,173.24
  4. Step 4: Simplify right side
    81,776.08x = 3,577,396,561.31
  5. Step 5: Solve for x
    x = 3,577,396,561.31/81,776.08
  6. Step 6: Final answer
    x = 43,746.25

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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.