Home / 50,805.21-70,109.03-28,145.16

Finding the Fourth Proportional to 50,805.21, 70,109.03 and 28,145.16

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Solution

The fourth proportional to 50,805.21, 70,109.03 and 28,145.16 is: 38,839.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,805.21 : 70,109.03 = 28,145.16 : x
  2. Step 2: Convert to fraction form
    50,805.21/70,109.03 = 28,145.16/x
  3. Step 3: Cross multiply
    50,805.21x = 70,109.03 × 28,145.16
  4. Step 4: Simplify right side
    50,805.21x = 1,973,229,778.84
  5. Step 5: Solve for x
    x = 1,973,229,778.84/50,805.21
  6. Step 6: Final answer
    x = 38,839.12

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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.