Home / 57,961.32-86,934.72-18,515.16

Finding the Fourth Proportional to 57,961.32, 86,934.72 and 18,515.16

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Solution

The fourth proportional to 57,961.32, 86,934.72 and 18,515.16 is: 27,770.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,961.32 : 86,934.72 = 18,515.16 : x
  2. Step 2: Convert to fraction form
    57,961.32/86,934.72 = 18,515.16/x
  3. Step 3: Cross multiply
    57,961.32x = 86,934.72 × 18,515.16
  4. Step 4: Simplify right side
    57,961.32x = 1,609,610,250.36
  5. Step 5: Solve for x
    x = 1,609,610,250.36/57,961.32
  6. Step 6: Final answer
    x = 27,770.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.