Home / 57,705.40-86,558.10-40,792.60

Finding the Fourth Proportional to 57,705.40, 86,558.10 and 40,792.60

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Solution

The fourth proportional to 57,705.40, 86,558.10 and 40,792.60 is: 61,188.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,705.40 : 86,558.10 = 40,792.60 : x
  2. Step 2: Convert to fraction form
    57,705.40/86,558.10 = 40,792.60/x
  3. Step 3: Cross multiply
    57,705.40x = 86,558.10 × 40,792.60
  4. Step 4: Simplify right side
    57,705.40x = 3,530,929,950.06
  5. Step 5: Solve for x
    x = 3,530,929,950.06/57,705.40
  6. Step 6: Final answer
    x = 61,188.90

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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.