Home / 213,773.18-320,670.09-56,001.78

Finding the Fourth Proportional to 213,773.18, 320,670.09 and 56,001.78

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Solution

The fourth proportional to 213,773.18, 320,670.09 and 56,001.78 is: 84,005.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,773.18 : 320,670.09 = 56,001.78 : x
  2. Step 2: Convert to fraction form
    213,773.18/320,670.09 = 56,001.78/x
  3. Step 3: Cross multiply
    213,773.18x = 320,670.09 × 56,001.78
  4. Step 4: Simplify right side
    213,773.18x = 17,958,095,832.76
  5. Step 5: Solve for x
    x = 17,958,095,832.76/213,773.18
  6. Step 6: Final answer
    x = 84,005.38

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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.