Home / 57,109.60-85,664.40-51,277.60

Finding the Fourth Proportional to 57,109.60, 85,664.40 and 51,277.60

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Solution

The fourth proportional to 57,109.60, 85,664.40 and 51,277.60 is: 76,916.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,109.60 : 85,664.40 = 51,277.60 : x
  2. Step 2: Convert to fraction form
    57,109.60/85,664.40 = 51,277.60/x
  3. Step 3: Cross multiply
    57,109.60x = 85,664.40 × 51,277.60
  4. Step 4: Simplify right side
    57,109.60x = 4,392,664,837.44
  5. Step 5: Solve for x
    x = 4,392,664,837.44/57,109.60
  6. Step 6: Final answer
    x = 76,916.40

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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.