Home / 53,977.32-80,971.80-20,725.56

Finding the Fourth Proportional to 53,977.32, 80,971.80 and 20,725.56

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Solution

The fourth proportional to 53,977.32, 80,971.80 and 20,725.56 is: 31,090.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,977.32 : 80,971.80 = 20,725.56 : x
  2. Step 2: Convert to fraction form
    53,977.32/80,971.80 = 20,725.56/x
  3. Step 3: Cross multiply
    53,977.32x = 80,971.80 × 20,725.56
  4. Step 4: Simplify right side
    53,977.32x = 1,678,185,899.21
  5. Step 5: Solve for x
    x = 1,678,185,899.21/53,977.32
  6. Step 6: Final answer
    x = 31,090.57

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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.