Home / 66,362.40-91,592.64-38,086.56

Finding the Fourth Proportional to 66,362.40, 91,592.64 and 38,086.56

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Solution

The fourth proportional to 66,362.40, 91,592.64 and 38,086.56 is: 52,566.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,362.40 : 91,592.64 = 38,086.56 : x
  2. Step 2: Convert to fraction form
    66,362.40/91,592.64 = 38,086.56/x
  3. Step 3: Cross multiply
    66,362.40x = 91,592.64 × 38,086.56
  4. Step 4: Simplify right side
    66,362.40x = 3,488,448,578.92
  5. Step 5: Solve for x
    x = 3,488,448,578.92/66,362.40
  6. Step 6: Final answer
    x = 52,566.64

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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.