Home / 74,625.74-111,392.60-65,768.66

Finding the Fourth Proportional to 74,625.74, 111,392.60 and 65,768.66

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Solution

The fourth proportional to 74,625.74, 111,392.60 and 65,768.66 is: 98,171.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,625.74 : 111,392.60 = 65,768.66 : x
  2. Step 2: Convert to fraction form
    74,625.74/111,392.60 = 65,768.66/x
  3. Step 3: Cross multiply
    74,625.74x = 111,392.60 × 65,768.66
  4. Step 4: Simplify right side
    74,625.74x = 7,326,142,035.92
  5. Step 5: Solve for x
    x = 7,326,142,035.92/74,625.74
  6. Step 6: Final answer
    x = 98,171.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.