Home / 42,976.26-64,438.44-19,279.50

Finding the Fourth Proportional to 42,976.26, 64,438.44 and 19,279.50

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Solution

The fourth proportional to 42,976.26, 64,438.44 and 19,279.50 is: 28,907.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,976.26 : 64,438.44 = 19,279.50 : x
  2. Step 2: Convert to fraction form
    42,976.26/64,438.44 = 19,279.50/x
  3. Step 3: Cross multiply
    42,976.26x = 64,438.44 × 19,279.50
  4. Step 4: Simplify right side
    42,976.26x = 1,242,340,903.98
  5. Step 5: Solve for x
    x = 1,242,340,903.98/42,976.26
  6. Step 6: Final answer
    x = 28,907.61

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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.