Home / 43,490.52-65,236.40-12,325.78

Finding the Fourth Proportional to 43,490.52, 65,236.40 and 12,325.78

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Solution

The fourth proportional to 43,490.52, 65,236.40 and 12,325.78 is: 18,488.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,490.52 : 65,236.40 = 12,325.78 : x
  2. Step 2: Convert to fraction form
    43,490.52/65,236.40 = 12,325.78/x
  3. Step 3: Cross multiply
    43,490.52x = 65,236.40 × 12,325.78
  4. Step 4: Simplify right side
    43,490.52x = 804,089,514.39
  5. Step 5: Solve for x
    x = 804,089,514.39/43,490.52
  6. Step 6: Final answer
    x = 18,488.85

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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.