Home / 213,828.30-320,743.80-56,055.36

Finding the Fourth Proportional to 213,828.30, 320,743.80 and 56,055.36

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Solution

The fourth proportional to 213,828.30, 320,743.80 and 56,055.36 is: 84,083.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,828.30 : 320,743.80 = 56,055.36 : x
  2. Step 2: Convert to fraction form
    213,828.30/320,743.80 = 56,055.36/x
  3. Step 3: Cross multiply
    213,828.30x = 320,743.80 × 56,055.36
  4. Step 4: Simplify right side
    213,828.30x = 17,979,409,176.77
  5. Step 5: Solve for x
    x = 17,979,409,176.77/213,828.30
  6. Step 6: Final answer
    x = 84,083.39

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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.