Home / 57,639.36-79,556.58-39,272.86

Finding the Fourth Proportional to 57,639.36, 79,556.58 and 39,272.86

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Solution

The fourth proportional to 57,639.36, 79,556.58 and 39,272.86 is: 54,206.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,639.36 : 79,556.58 = 39,272.86 : x
  2. Step 2: Convert to fraction form
    57,639.36/79,556.58 = 39,272.86/x
  3. Step 3: Cross multiply
    57,639.36x = 79,556.58 × 39,272.86
  4. Step 4: Simplify right side
    57,639.36x = 3,124,414,376.80
  5. Step 5: Solve for x
    x = 3,124,414,376.80/57,639.36
  6. Step 6: Final answer
    x = 54,206.26

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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.