Home / 50,665.16-69,917.54-28,005.72

Finding the Fourth Proportional to 50,665.16, 69,917.54 and 28,005.72

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Solution

The fourth proportional to 50,665.16, 69,917.54 and 28,005.72 is: 38,647.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,665.16 : 69,917.54 = 28,005.72 : x
  2. Step 2: Convert to fraction form
    50,665.16/69,917.54 = 28,005.72/x
  3. Step 3: Cross multiply
    50,665.16x = 69,917.54 × 28,005.72
  4. Step 4: Simplify right side
    50,665.16x = 1,958,091,048.33
  5. Step 5: Solve for x
    x = 1,958,091,048.33/50,665.16
  6. Step 6: Final answer
    x = 38,647.68

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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.