Home / 74,837.12-112,255.47-30,453.37

Finding the Fourth Proportional to 74,837.12, 112,255.47 and 30,453.37

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Solution

The fourth proportional to 74,837.12, 112,255.47 and 30,453.37 is: 45,679.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,837.12 : 112,255.47 = 30,453.37 : x
  2. Step 2: Convert to fraction form
    74,837.12/112,255.47 = 30,453.37/x
  3. Step 3: Cross multiply
    74,837.12x = 112,255.47 × 30,453.37
  4. Step 4: Simplify right side
    74,837.12x = 3,418,557,081.80
  5. Step 5: Solve for x
    x = 3,418,557,081.80/74,837.12
  6. Step 6: Final answer
    x = 45,679.97

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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.