Home / 49,905.40-74,886.90-18,743.80

Finding the Fourth Proportional to 49,905.40, 74,886.90 and 18,743.80

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Solution

The fourth proportional to 49,905.40, 74,886.90 and 18,743.80 is: 28,126.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,905.40 : 74,886.90 = 18,743.80 : x
  2. Step 2: Convert to fraction form
    49,905.40/74,886.90 = 18,743.80/x
  3. Step 3: Cross multiply
    49,905.40x = 74,886.90 × 18,743.80
  4. Step 4: Simplify right side
    49,905.40x = 1,403,665,076.22
  5. Step 5: Solve for x
    x = 1,403,665,076.22/49,905.40
  6. Step 6: Final answer
    x = 28,126.52

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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.