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Finding the Fourth Proportional to 50,805.25, 70,110.30 and 28,143.74

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Solution

The fourth proportional to 50,805.25, 70,110.30 and 28,143.74 is: 38,837.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,805.25 : 70,110.30 = 28,143.74 : x
  2. Step 2: Convert to fraction form
    50,805.25/70,110.30 = 28,143.74/x
  3. Step 3: Cross multiply
    50,805.25x = 70,110.30 × 28,143.74
  4. Step 4: Simplify right side
    50,805.25x = 1,973,166,054.52
  5. Step 5: Solve for x
    x = 1,973,166,054.52/50,805.25
  6. Step 6: Final answer
    x = 38,837.84

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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.