Home / 212,822.72-319,252.49-61,020.47

Finding the Fourth Proportional to 212,822.72, 319,252.49 and 61,020.47

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Solution

The fourth proportional to 212,822.72, 319,252.49 and 61,020.47 is: 91,535.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,822.72 : 319,252.49 = 61,020.47 : x
  2. Step 2: Convert to fraction form
    212,822.72/319,252.49 = 61,020.47/x
  3. Step 3: Cross multiply
    212,822.72x = 319,252.49 × 61,020.47
  4. Step 4: Simplify right side
    212,822.72x = 19,480,936,988.47
  5. Step 5: Solve for x
    x = 19,480,936,988.47/212,822.72
  6. Step 6: Final answer
    x = 91,535.98

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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.