Home / 81,448.06-112,387.88-45,629.26

Finding the Fourth Proportional to 81,448.06, 112,387.88 and 45,629.26

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Solution

The fourth proportional to 81,448.06, 112,387.88 and 45,629.26 is: 62,962.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,448.06 : 112,387.88 = 45,629.26 : x
  2. Step 2: Convert to fraction form
    81,448.06/112,387.88 = 45,629.26/x
  3. Step 3: Cross multiply
    81,448.06x = 112,387.88 × 45,629.26
  4. Step 4: Simplify right side
    81,448.06x = 5,128,175,797.37
  5. Step 5: Solve for x
    x = 5,128,175,797.37/81,448.06
  6. Step 6: Final answer
    x = 62,962.53

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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.