Home / 66,023.40-91,094.72-39,143.55

Finding the Fourth Proportional to 66,023.40, 91,094.72 and 39,143.55

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Solution

The fourth proportional to 66,023.40, 91,094.72 and 39,143.55 is: 54,007.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,023.40 : 91,094.72 = 39,143.55 : x
  2. Step 2: Convert to fraction form
    66,023.40/91,094.72 = 39,143.55/x
  3. Step 3: Cross multiply
    66,023.40x = 91,094.72 × 39,143.55
  4. Step 4: Simplify right side
    66,023.40x = 3,565,770,531.34
  5. Step 5: Solve for x
    x = 3,565,770,531.34/66,023.40
  6. Step 6: Final answer
    x = 54,007.68

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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.