Home / 82,830.86-124,208.22-26,660.60

Finding the Fourth Proportional to 82,830.86, 124,208.22 and 26,660.60

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Solution

The fourth proportional to 82,830.86, 124,208.22 and 26,660.60 is: 39,978.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,830.86 : 124,208.22 = 26,660.60 : x
  2. Step 2: Convert to fraction form
    82,830.86/124,208.22 = 26,660.60/x
  3. Step 3: Cross multiply
    82,830.86x = 124,208.22 × 26,660.60
  4. Step 4: Simplify right side
    82,830.86x = 3,311,465,670.13
  5. Step 5: Solve for x
    x = 3,311,465,670.13/82,830.86
  6. Step 6: Final answer
    x = 39,978.65

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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.