Home / 66,154.83-99,224.42-18,774.09

Finding the Fourth Proportional to 66,154.83, 99,224.42 and 18,774.09

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Solution

The fourth proportional to 66,154.83, 99,224.42 and 18,774.09 is: 28,158.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,154.83 : 99,224.42 = 18,774.09 : x
  2. Step 2: Convert to fraction form
    66,154.83/99,224.42 = 18,774.09/x
  3. Step 3: Cross multiply
    66,154.83x = 99,224.42 × 18,774.09
  4. Step 4: Simplify right side
    66,154.83x = 1,862,848,097.41
  5. Step 5: Solve for x
    x = 1,862,848,097.41/66,154.83
  6. Step 6: Final answer
    x = 28,158.91

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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.