Home / 81,629.74-112,634.79-45,821.26

Finding the Fourth Proportional to 81,629.74, 112,634.79 and 45,821.26

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Solution

The fourth proportional to 81,629.74, 112,634.79 and 45,821.26 is: 63,225.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,629.74 : 112,634.79 = 45,821.26 : x
  2. Step 2: Convert to fraction form
    81,629.74/112,634.79 = 45,821.26/x
  3. Step 3: Cross multiply
    81,629.74x = 112,634.79 × 45,821.26
  4. Step 4: Simplify right side
    81,629.74x = 5,161,067,997.64
  5. Step 5: Solve for x
    x = 5,161,067,997.64/81,629.74
  6. Step 6: Final answer
    x = 63,225.34

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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.