Home / 50,456.25-69,631.79-28,100.25

Finding the Fourth Proportional to 50,456.25, 69,631.79 and 28,100.25

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Solution

The fourth proportional to 50,456.25, 69,631.79 and 28,100.25 is: 38,779.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,456.25 : 69,631.79 = 28,100.25 : x
  2. Step 2: Convert to fraction form
    50,456.25/69,631.79 = 28,100.25/x
  3. Step 3: Cross multiply
    50,456.25x = 69,631.79 × 28,100.25
  4. Step 4: Simplify right side
    50,456.25x = 1,956,670,706.95
  5. Step 5: Solve for x
    x = 1,956,670,706.95/50,456.25
  6. Step 6: Final answer
    x = 38,779.55

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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.