Home / 74,117.39-111,142.46-31,977.54

Finding the Fourth Proportional to 74,117.39, 111,142.46 and 31,977.54

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Solution

The fourth proportional to 74,117.39, 111,142.46 and 31,977.54 is: 47,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,117.39 : 111,142.46 = 31,977.54 : x
  2. Step 2: Convert to fraction form
    74,117.39/111,142.46 = 31,977.54/x
  3. Step 3: Cross multiply
    74,117.39x = 111,142.46 × 31,977.54
  4. Step 4: Simplify right side
    74,117.39x = 3,554,062,460.35
  5. Step 5: Solve for x
    x = 3,554,062,460.35/74,117.39
  6. Step 6: Final answer
    x = 47,951.80

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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.