Home / 213,788.18-320,692.59-56,016.78

Finding the Fourth Proportional to 213,788.18, 320,692.59 and 56,016.78

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Solution

The fourth proportional to 213,788.18, 320,692.59 and 56,016.78 is: 84,027.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,788.18 : 320,692.59 = 56,016.78 : x
  2. Step 2: Convert to fraction form
    213,788.18/320,692.59 = 56,016.78/x
  3. Step 3: Cross multiply
    213,788.18x = 320,692.59 × 56,016.78
  4. Step 4: Simplify right side
    213,788.18x = 17,964,166,261.66
  5. Step 5: Solve for x
    x = 17,964,166,261.66/213,788.18
  6. Step 6: Final answer
    x = 84,027.88

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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.