Home / 81,821.81-112,914.79-46,011.51

Finding the Fourth Proportional to 81,821.81, 112,914.79 and 46,011.51

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Solution

The fourth proportional to 81,821.81, 112,914.79 and 46,011.51 is: 63,496.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,821.81 : 112,914.79 = 46,011.51 : x
  2. Step 2: Convert to fraction form
    81,821.81/112,914.79 = 46,011.51/x
  3. Step 3: Cross multiply
    81,821.81x = 112,914.79 × 46,011.51
  4. Step 4: Simplify right side
    81,821.81x = 5,195,379,874.20
  5. Step 5: Solve for x
    x = 5,195,379,874.20/81,821.81
  6. Step 6: Final answer
    x = 63,496.27

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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.