Home / 57,805.44-79,837.32-38,909.76

Finding the Fourth Proportional to 57,805.44, 79,837.32 and 38,909.76

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Solution

The fourth proportional to 57,805.44, 79,837.32 and 38,909.76 is: 53,739.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,805.44 : 79,837.32 = 38,909.76 : x
  2. Step 2: Convert to fraction form
    57,805.44/79,837.32 = 38,909.76/x
  3. Step 3: Cross multiply
    57,805.44x = 79,837.32 × 38,909.76
  4. Step 4: Simplify right side
    57,805.44x = 3,106,450,960.24
  5. Step 5: Solve for x
    x = 3,106,450,960.24/57,805.44
  6. Step 6: Final answer
    x = 53,739.77

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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.