Home / 213,815.88-320,699.16-56,056.86

Finding the Fourth Proportional to 213,815.88, 320,699.16 and 56,056.86

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Solution

The fourth proportional to 213,815.88, 320,699.16 and 56,056.86 is: 84,078.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,815.88 : 320,699.16 = 56,056.86 : x
  2. Step 2: Convert to fraction form
    213,815.88/320,699.16 = 56,056.86/x
  3. Step 3: Cross multiply
    213,815.88x = 320,699.16 × 56,056.86
  4. Step 4: Simplify right side
    213,815.88x = 17,977,387,914.24
  5. Step 5: Solve for x
    x = 17,977,387,914.24/213,815.88
  6. Step 6: Final answer
    x = 84,078.82

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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.