Home / 212,823.47-319,253.61-61,021.22

Finding the Fourth Proportional to 212,823.47, 319,253.61 and 61,021.22

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Solution

The fourth proportional to 212,823.47, 319,253.61 and 61,021.22 is: 91,537.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,823.47 : 319,253.61 = 61,021.22 : x
  2. Step 2: Convert to fraction form
    212,823.47/319,253.61 = 61,021.22/x
  3. Step 3: Cross multiply
    212,823.47x = 319,253.61 × 61,021.22
  4. Step 4: Simplify right side
    212,823.47x = 19,481,244,771.60
  5. Step 5: Solve for x
    x = 19,481,244,771.60/212,823.47
  6. Step 6: Final answer
    x = 91,537.11

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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.