Home / 81,645.30-112,662.81-45,828.33

Finding the Fourth Proportional to 81,645.30, 112,662.81 and 45,828.33

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Solution

The fourth proportional to 81,645.30, 112,662.81 and 45,828.33 is: 63,238.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,645.30 : 112,662.81 = 45,828.33 : x
  2. Step 2: Convert to fraction form
    81,645.30/112,662.81 = 45,828.33/x
  3. Step 3: Cross multiply
    81,645.30x = 112,662.81 × 45,828.33
  4. Step 4: Simplify right side
    81,645.30x = 5,163,148,435.41
  5. Step 5: Solve for x
    x = 5,163,148,435.41/81,645.30
  6. Step 6: Final answer
    x = 63,238.77

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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.