Home / 74,958.32-112,453.68-28,211.06

Finding the Fourth Proportional to 74,958.32, 112,453.68 and 28,211.06

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Solution

The fourth proportional to 74,958.32, 112,453.68 and 28,211.06 is: 42,322.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,958.32 : 112,453.68 = 28,211.06 : x
  2. Step 2: Convert to fraction form
    74,958.32/112,453.68 = 28,211.06/x
  3. Step 3: Cross multiply
    74,958.32x = 112,453.68 × 28,211.06
  4. Step 4: Simplify right side
    74,958.32x = 3,172,437,513.70
  5. Step 5: Solve for x
    x = 3,172,437,513.70/74,958.32
  6. Step 6: Final answer
    x = 42,322.69

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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.