Home / 66,852.03-100,284.43-18,820.50

Finding the Fourth Proportional to 66,852.03, 100,284.43 and 18,820.50

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Solution

The fourth proportional to 66,852.03, 100,284.43 and 18,820.50 is: 28,232.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,852.03 : 100,284.43 = 18,820.50 : x
  2. Step 2: Convert to fraction form
    66,852.03/100,284.43 = 18,820.50/x
  3. Step 3: Cross multiply
    66,852.03x = 100,284.43 × 18,820.50
  4. Step 4: Simplify right side
    66,852.03x = 1,887,403,291.09
  5. Step 5: Solve for x
    x = 1,887,403,291.09/66,852.03
  6. Step 6: Final answer
    x = 28,232.55

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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.