Home / 81,664.96-112,696.32-45,855.04

Finding the Fourth Proportional to 81,664.96, 112,696.32 and 45,855.04

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Solution

The fourth proportional to 81,664.96, 112,696.32 and 45,855.04 is: 63,279.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,664.96 : 112,696.32 = 45,855.04 : x
  2. Step 2: Convert to fraction form
    81,664.96/112,696.32 = 45,855.04/x
  3. Step 3: Cross multiply
    81,664.96x = 112,696.32 × 45,855.04
  4. Step 4: Simplify right side
    81,664.96x = 5,167,694,261.45
  5. Step 5: Solve for x
    x = 5,167,694,261.45/81,664.96
  6. Step 6: Final answer
    x = 63,279.21

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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.