Home / 74,908.74-112,379.87-28,162.02

Finding the Fourth Proportional to 74,908.74, 112,379.87 and 28,162.02

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Solution

The fourth proportional to 74,908.74, 112,379.87 and 28,162.02 is: 42,249.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,908.74 : 112,379.87 = 28,162.02 : x
  2. Step 2: Convert to fraction form
    74,908.74/112,379.87 = 28,162.02/x
  3. Step 3: Cross multiply
    74,908.74x = 112,379.87 × 28,162.02
  4. Step 4: Simplify right side
    74,908.74x = 3,164,844,146.54
  5. Step 5: Solve for x
    x = 3,164,844,146.54/74,908.74
  6. Step 6: Final answer
    x = 42,249.33

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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.