Home / 68,087.20-93,766.80-49,194.40

Finding the Fourth Proportional to 68,087.20, 93,766.80 and 49,194.40

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Solution

The fourth proportional to 68,087.20, 93,766.80 and 49,194.40 is: 67,748.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,087.20 : 93,766.80 = 49,194.40 : x
  2. Step 2: Convert to fraction form
    68,087.20/93,766.80 = 49,194.40/x
  3. Step 3: Cross multiply
    68,087.20x = 93,766.80 × 49,194.40
  4. Step 4: Simplify right side
    68,087.20x = 4,612,801,465.92
  5. Step 5: Solve for x
    x = 4,612,801,465.92/68,087.20
  6. Step 6: Final answer
    x = 67,748.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.