Home / 66,467.12-91,714.04-39,608.96

Finding the Fourth Proportional to 66,467.12, 91,714.04 and 39,608.96

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Solution

The fourth proportional to 66,467.12, 91,714.04 and 39,608.96 is: 54,654.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,467.12 : 91,714.04 = 39,608.96 : x
  2. Step 2: Convert to fraction form
    66,467.12/91,714.04 = 39,608.96/x
  3. Step 3: Cross multiply
    66,467.12x = 91,714.04 × 39,608.96
  4. Step 4: Simplify right side
    66,467.12x = 3,632,697,741.80
  5. Step 5: Solve for x
    x = 3,632,697,741.80/66,467.12
  6. Step 6: Final answer
    x = 54,654.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.