Home / 65,893.19-90,928.99-38,665.62

Finding the Fourth Proportional to 65,893.19, 90,928.99 and 38,665.62

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Solution

The fourth proportional to 65,893.19, 90,928.99 and 38,665.62 is: 53,356.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,893.19 : 90,928.99 = 38,665.62 : x
  2. Step 2: Convert to fraction form
    65,893.19/90,928.99 = 38,665.62/x
  3. Step 3: Cross multiply
    65,893.19x = 90,928.99 × 38,665.62
  4. Step 4: Simplify right side
    65,893.19x = 3,515,825,822.66
  5. Step 5: Solve for x
    x = 3,515,825,822.66/65,893.19
  6. Step 6: Final answer
    x = 53,356.44

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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.