Home / 213,052.15-319,631.75-61,249.50

Finding the Fourth Proportional to 213,052.15, 319,631.75 and 61,249.50

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Solution

The fourth proportional to 213,052.15, 319,631.75 and 61,249.50 is: 91,889.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,052.15 : 319,631.75 = 61,249.50 : x
  2. Step 2: Convert to fraction form
    213,052.15/319,631.75 = 61,249.50/x
  3. Step 3: Cross multiply
    213,052.15x = 319,631.75 × 61,249.50
  4. Step 4: Simplify right side
    213,052.15x = 19,577,285,971.25
  5. Step 5: Solve for x
    x = 19,577,285,971.25/213,052.15
  6. Step 6: Final answer
    x = 91,889.64

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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.