Home / 49,047.55-67,684.97-28,905.28

Finding the Fourth Proportional to 49,047.55, 67,684.97 and 28,905.28

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Solution

The fourth proportional to 49,047.55, 67,684.97 and 28,905.28 is: 39,888.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,047.55 : 67,684.97 = 28,905.28 : x
  2. Step 2: Convert to fraction form
    49,047.55/67,684.97 = 28,905.28/x
  3. Step 3: Cross multiply
    49,047.55x = 67,684.97 × 28,905.28
  4. Step 4: Simplify right side
    49,047.55x = 1,956,452,912.69
  5. Step 5: Solve for x
    x = 1,956,452,912.69/49,047.55
  6. Step 6: Final answer
    x = 39,888.90

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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.