Home / 82,788.86-124,145.22-26,618.60

Finding the Fourth Proportional to 82,788.86, 124,145.22 and 26,618.60

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Solution

The fourth proportional to 82,788.86, 124,145.22 and 26,618.60 is: 39,915.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,788.86 : 124,145.22 = 26,618.60 : x
  2. Step 2: Convert to fraction form
    82,788.86/124,145.22 = 26,618.60/x
  3. Step 3: Cross multiply
    82,788.86x = 124,145.22 × 26,618.60
  4. Step 4: Simplify right side
    82,788.86x = 3,304,571,953.09
  5. Step 5: Solve for x
    x = 3,304,571,953.09/82,788.86
  6. Step 6: Final answer
    x = 39,915.66

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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.