Home / 66,154.16-99,244.89-21,783.56

Finding the Fourth Proportional to 66,154.16, 99,244.89 and 21,783.56

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Solution

The fourth proportional to 66,154.16, 99,244.89 and 21,783.56 is: 32,679.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,154.16 : 99,244.89 = 21,783.56 : x
  2. Step 2: Convert to fraction form
    66,154.16/99,244.89 = 21,783.56/x
  3. Step 3: Cross multiply
    66,154.16x = 99,244.89 × 21,783.56
  4. Step 4: Simplify right side
    66,154.16x = 2,161,907,016.01
  5. Step 5: Solve for x
    x = 2,161,907,016.01/66,154.16
  6. Step 6: Final answer
    x = 32,679.83

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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.