Home / 57,787.60-86,630.20-51,566.80

Finding the Fourth Proportional to 57,787.60, 86,630.20 and 51,566.80

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Solution

The fourth proportional to 57,787.60, 86,630.20 and 51,566.80 is: 77,304.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,787.60 : 86,630.20 = 51,566.80 : x
  2. Step 2: Convert to fraction form
    57,787.60/86,630.20 = 51,566.80/x
  3. Step 3: Cross multiply
    57,787.60x = 86,630.20 × 51,566.80
  4. Step 4: Simplify right side
    57,787.60x = 4,467,242,197.36
  5. Step 5: Solve for x
    x = 4,467,242,197.36/57,787.60
  6. Step 6: Final answer
    x = 77,304.51

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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.