Home / 78,788.41-118,182.63-26,198.35

Finding the Fourth Proportional to 78,788.41, 118,182.63 and 26,198.35

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Solution

The fourth proportional to 78,788.41, 118,182.63 and 26,198.35 is: 39,297.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,788.41 : 118,182.63 = 26,198.35 : x
  2. Step 2: Convert to fraction form
    78,788.41/118,182.63 = 26,198.35/x
  3. Step 3: Cross multiply
    78,788.41x = 118,182.63 × 26,198.35
  4. Step 4: Simplify right side
    78,788.41x = 3,096,189,904.66
  5. Step 5: Solve for x
    x = 3,096,189,904.66/78,788.41
  6. Step 6: Final answer
    x = 39,297.53

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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.