Home / 66,451.44-91,614.96-53,690.34

Finding the Fourth Proportional to 66,451.44, 91,614.96 and 53,690.34

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Solution

The fourth proportional to 66,451.44, 91,614.96 and 53,690.34 is: 74,021.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,451.44 : 91,614.96 = 53,690.34 : x
  2. Step 2: Convert to fraction form
    66,451.44/91,614.96 = 53,690.34/x
  3. Step 3: Cross multiply
    66,451.44x = 91,614.96 × 53,690.34
  4. Step 4: Simplify right side
    66,451.44x = 4,918,838,351.49
  5. Step 5: Solve for x
    x = 4,918,838,351.49/66,451.44
  6. Step 6: Final answer
    x = 74,021.55

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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.