Home / 68,766.40-103,089.60-26,675.20

Finding the Fourth Proportional to 68,766.40, 103,089.60 and 26,675.20

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Solution

The fourth proportional to 68,766.40, 103,089.60 and 26,675.20 is: 39,989.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,766.40 : 103,089.60 = 26,675.20 : x
  2. Step 2: Convert to fraction form
    68,766.40/103,089.60 = 26,675.20/x
  3. Step 3: Cross multiply
    68,766.40x = 103,089.60 × 26,675.20
  4. Step 4: Simplify right side
    68,766.40x = 2,749,935,697.92
  5. Step 5: Solve for x
    x = 2,749,935,697.92/68,766.40
  6. Step 6: Final answer
    x = 39,989.53

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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.