Home / 66,614.78-99,928.85-19,231.04

Finding the Fourth Proportional to 66,614.78, 99,928.85 and 19,231.04

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Solution

The fourth proportional to 66,614.78, 99,928.85 and 19,231.04 is: 28,848.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,614.78 : 99,928.85 = 19,231.04 : x
  2. Step 2: Convert to fraction form
    66,614.78/99,928.85 = 19,231.04/x
  3. Step 3: Cross multiply
    66,614.78x = 99,928.85 × 19,231.04
  4. Step 4: Simplify right side
    66,614.78x = 1,921,735,711.50
  5. Step 5: Solve for x
    x = 1,921,735,711.50/66,614.78
  6. Step 6: Final answer
    x = 28,848.49

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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.