Home / 81,661.24-112,689.66-49,883.32

Finding the Fourth Proportional to 81,661.24, 112,689.66 and 49,883.32

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Solution

The fourth proportional to 81,661.24, 112,689.66 and 49,883.32 is: 68,837.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,661.24 : 112,689.66 = 49,883.32 : x
  2. Step 2: Convert to fraction form
    81,661.24/112,689.66 = 49,883.32/x
  3. Step 3: Cross multiply
    81,661.24x = 112,689.66 × 49,883.32
  4. Step 4: Simplify right side
    81,661.24x = 5,621,334,370.47
  5. Step 5: Solve for x
    x = 5,621,334,370.47/81,661.24
  6. Step 6: Final answer
    x = 68,837.24

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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.