Home / 66,236.16-99,354.24-19,489.05

Finding the Fourth Proportional to 66,236.16, 99,354.24 and 19,489.05

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Solution

The fourth proportional to 66,236.16, 99,354.24 and 19,489.05 is: 29,233.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,236.16 : 99,354.24 = 19,489.05 : x
  2. Step 2: Convert to fraction form
    66,236.16/99,354.24 = 19,489.05/x
  3. Step 3: Cross multiply
    66,236.16x = 99,354.24 × 19,489.05
  4. Step 4: Simplify right side
    66,236.16x = 1,936,319,751.07
  5. Step 5: Solve for x
    x = 1,936,319,751.07/66,236.16
  6. Step 6: Final answer
    x = 29,233.58

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1.5x scale

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.