Home / 213,705.54-320,558.31-55,947.51

Finding the Fourth Proportional to 213,705.54, 320,558.31 and 55,947.51

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Solution

The fourth proportional to 213,705.54, 320,558.31 and 55,947.51 is: 83,921.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,705.54 : 320,558.31 = 55,947.51 : x
  2. Step 2: Convert to fraction form
    213,705.54/320,558.31 = 55,947.51/x
  3. Step 3: Cross multiply
    213,705.54x = 320,558.31 × 55,947.51
  4. Step 4: Simplify right side
    213,705.54x = 17,934,439,254.31
  5. Step 5: Solve for x
    x = 17,934,439,254.31/213,705.54
  6. Step 6: Final answer
    x = 83,921.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.