Home / 49,987.56-68,982.90-28,766.40

Finding the Fourth Proportional to 49,987.56, 68,982.90 and 28,766.40

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Solution

The fourth proportional to 49,987.56, 68,982.90 and 28,766.40 is: 39,697.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,987.56 : 68,982.90 = 28,766.40 : x
  2. Step 2: Convert to fraction form
    49,987.56/68,982.90 = 28,766.40/x
  3. Step 3: Cross multiply
    49,987.56x = 68,982.90 × 28,766.40
  4. Step 4: Simplify right side
    49,987.56x = 1,984,389,694.56
  5. Step 5: Solve for x
    x = 1,984,389,694.56/49,987.56
  6. Step 6: Final answer
    x = 39,697.67

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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.