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Finding the Fourth Proportional to 50,758.69, 70,047.61 and 28,099.77

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Solution

The fourth proportional to 50,758.69, 70,047.61 and 28,099.77 is: 38,778.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,758.69 : 70,047.61 = 28,099.77 : x
  2. Step 2: Convert to fraction form
    50,758.69/70,047.61 = 28,099.77/x
  3. Step 3: Cross multiply
    50,758.69x = 70,047.61 × 28,099.77
  4. Step 4: Simplify right side
    50,758.69x = 1,968,321,730.05
  5. Step 5: Solve for x
    x = 1,968,321,730.05/50,758.69
  6. Step 6: Final answer
    x = 38,778.02

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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.