Home / 57,014.64-85,408.56-52,141.68

Finding the Fourth Proportional to 57,014.64, 85,408.56 and 52,141.68

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Solution

The fourth proportional to 57,014.64, 85,408.56 and 52,141.68 is: 78,108.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,014.64 : 85,408.56 = 52,141.68 : x
  2. Step 2: Convert to fraction form
    57,014.64/85,408.56 = 52,141.68/x
  3. Step 3: Cross multiply
    57,014.64x = 85,408.56 × 52,141.68
  4. Step 4: Simplify right side
    57,014.64x = 4,453,345,804.78
  5. Step 5: Solve for x
    x = 4,453,345,804.78/57,014.64
  6. Step 6: Final answer
    x = 78,108.81

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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.