Home / 57,992.07-86,985.36-20,551.53

Finding the Fourth Proportional to 57,992.07, 86,985.36 and 20,551.53

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Solution

The fourth proportional to 57,992.07, 86,985.36 and 20,551.53 is: 30,826.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,992.07 : 86,985.36 = 20,551.53 : x
  2. Step 2: Convert to fraction form
    57,992.07/86,985.36 = 20,551.53/x
  3. Step 3: Cross multiply
    57,992.07x = 86,985.36 × 20,551.53
  4. Step 4: Simplify right side
    57,992.07x = 1,787,682,235.60
  5. Step 5: Solve for x
    x = 1,787,682,235.60/57,992.07
  6. Step 6: Final answer
    x = 30,826.32

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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.