Home / 49,715.30-74,573.10-12,275.37

Finding the Fourth Proportional to 49,715.30, 74,573.10 and 12,275.37

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Solution

The fourth proportional to 49,715.30, 74,573.10 and 12,275.37 is: 18,413.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,715.30 : 74,573.10 = 12,275.37 : x
  2. Step 2: Convert to fraction form
    49,715.30/74,573.10 = 12,275.37/x
  3. Step 3: Cross multiply
    49,715.30x = 74,573.10 × 12,275.37
  4. Step 4: Simplify right side
    49,715.30x = 915,412,394.55
  5. Step 5: Solve for x
    x = 915,412,394.55/49,715.30
  6. Step 6: Final answer
    x = 18,413.09

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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.