Home / 84,916.20-127,374.30-53,786.60

Finding the Fourth Proportional to 84,916.20, 127,374.30 and 53,786.60

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Solution

The fourth proportional to 84,916.20, 127,374.30 and 53,786.60 is: 80,679.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,916.20 : 127,374.30 = 53,786.60 : x
  2. Step 2: Convert to fraction form
    84,916.20/127,374.30 = 53,786.60/x
  3. Step 3: Cross multiply
    84,916.20x = 127,374.30 × 53,786.60
  4. Step 4: Simplify right side
    84,916.20x = 6,851,030,524.38
  5. Step 5: Solve for x
    x = 6,851,030,524.38/84,916.20
  6. Step 6: Final answer
    x = 80,679.90

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1.5x scale

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.