Home / 74,748.53-103,127.09-47,905.84

Finding the Fourth Proportional to 74,748.53, 103,127.09 and 47,905.84

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Solution

The fourth proportional to 74,748.53, 103,127.09 and 47,905.84 is: 66,093.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,748.53 : 103,127.09 = 47,905.84 : x
  2. Step 2: Convert to fraction form
    74,748.53/103,127.09 = 47,905.84/x
  3. Step 3: Cross multiply
    74,748.53x = 103,127.09 × 47,905.84
  4. Step 4: Simplify right side
    74,748.53x = 4,940,389,735.15
  5. Step 5: Solve for x
    x = 4,940,389,735.15/74,748.53
  6. Step 6: Final answer
    x = 66,093.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.