Home / 83,837.28-115,644.84-51,577.40

Finding the Fourth Proportional to 83,837.28, 115,644.84 and 51,577.40

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Solution

The fourth proportional to 83,837.28, 115,644.84 and 51,577.40 is: 71,145.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,837.28 : 115,644.84 = 51,577.40 : x
  2. Step 2: Convert to fraction form
    83,837.28/115,644.84 = 51,577.40/x
  3. Step 3: Cross multiply
    83,837.28x = 115,644.84 × 51,577.40
  4. Step 4: Simplify right side
    83,837.28x = 5,964,660,170.62
  5. Step 5: Solve for x
    x = 5,964,660,170.62/83,837.28
  6. Step 6: Final answer
    x = 71,145.68

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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.