Home / 214,619.48-321,959.94-66,887

Finding the Fourth Proportional to 214,619.48, 321,959.94 and 66,887

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Solution

The fourth proportional to 214,619.48, 321,959.94 and 66,887 is: 100,340.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,619.48 : 321,959.94 = 66,887 : x
  2. Step 2: Convert to fraction form
    214,619.48/321,959.94 = 66,887/x
  3. Step 3: Cross multiply
    214,619.48x = 321,959.94 × 66,887
  4. Step 4: Simplify right side
    214,619.48x = 21,534,934,506.78
  5. Step 5: Solve for x
    x = 21,534,934,506.78/214,619.48
  6. Step 6: Final answer
    x = 100,340.07

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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.