Home / 81,802.24-112,563.48-68,330.32

Finding the Fourth Proportional to 81,802.24, 112,563.48 and 68,330.32

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Solution

The fourth proportional to 81,802.24, 112,563.48 and 68,330.32 is: 94,025.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,802.24 : 112,563.48 = 68,330.32 : x
  2. Step 2: Convert to fraction form
    81,802.24/112,563.48 = 68,330.32/x
  3. Step 3: Cross multiply
    81,802.24x = 112,563.48 × 68,330.32
  4. Step 4: Simplify right side
    81,802.24x = 7,691,498,608.71
  5. Step 5: Solve for x
    x = 7,691,498,608.71/81,802.24
  6. Step 6: Final answer
    x = 94,025.53

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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.