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Finding the Fourth Proportional to 57,137.56, 78,888.80 and 35,635.68

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Solution

The fourth proportional to 57,137.56, 78,888.80 and 35,635.68 is: 49,201.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,137.56 : 78,888.80 = 35,635.68 : x
  2. Step 2: Convert to fraction form
    57,137.56/78,888.80 = 35,635.68/x
  3. Step 3: Cross multiply
    57,137.56x = 78,888.80 × 35,635.68
  4. Step 4: Simplify right side
    57,137.56x = 2,811,256,032.38
  5. Step 5: Solve for x
    x = 2,811,256,032.38/57,137.56
  6. Step 6: Final answer
    x = 49,201.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.