Home / 57,720.54-86,600.25-28,132.86

Finding the Fourth Proportional to 57,720.54, 86,600.25 and 28,132.86

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Solution

The fourth proportional to 57,720.54, 86,600.25 and 28,132.86 is: 42,208.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,720.54 : 86,600.25 = 28,132.86 : x
  2. Step 2: Convert to fraction form
    57,720.54/86,600.25 = 28,132.86/x
  3. Step 3: Cross multiply
    57,720.54x = 86,600.25 × 28,132.86
  4. Step 4: Simplify right side
    57,720.54x = 2,436,312,709.22
  5. Step 5: Solve for x
    x = 2,436,312,709.22/57,720.54
  6. Step 6: Final answer
    x = 42,208.77

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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.