Home / 66,208.96-99,319.56-18,825.04

Finding the Fourth Proportional to 66,208.96, 99,319.56 and 18,825.04

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Solution

The fourth proportional to 66,208.96, 99,319.56 and 18,825.04 is: 28,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,208.96 : 99,319.56 = 18,825.04 : x
  2. Step 2: Convert to fraction form
    66,208.96/99,319.56 = 18,825.04/x
  3. Step 3: Cross multiply
    66,208.96x = 99,319.56 × 18,825.04
  4. Step 4: Simplify right side
    66,208.96x = 1,869,694,370.89
  5. Step 5: Solve for x
    x = 1,869,694,370.89/66,208.96
  6. Step 6: Final answer
    x = 28,239.30

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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.