Home / 49,511.80-74,279.10-19,930.60

Finding the Fourth Proportional to 49,511.80, 74,279.10 and 19,930.60

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Solution

The fourth proportional to 49,511.80, 74,279.10 and 19,930.60 is: 29,900.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,511.80 : 74,279.10 = 19,930.60 : x
  2. Step 2: Convert to fraction form
    49,511.80/74,279.10 = 19,930.60/x
  3. Step 3: Cross multiply
    49,511.80x = 74,279.10 × 19,930.60
  4. Step 4: Simplify right side
    49,511.80x = 1,480,427,030.46
  5. Step 5: Solve for x
    x = 1,480,427,030.46/49,511.80
  6. Step 6: Final answer
    x = 29,900.49

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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.