Home / 50,780.98-70,077.36-28,119.88

Finding the Fourth Proportional to 50,780.98, 70,077.36 and 28,119.88

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Solution

The fourth proportional to 50,780.98, 70,077.36 and 28,119.88 is: 38,805.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,780.98 : 70,077.36 = 28,119.88 : x
  2. Step 2: Convert to fraction form
    50,780.98/70,077.36 = 28,119.88/x
  3. Step 3: Cross multiply
    50,780.98x = 70,077.36 × 28,119.88
  4. Step 4: Simplify right side
    50,780.98x = 1,970,566,953.92
  5. Step 5: Solve for x
    x = 1,970,566,953.92/50,780.98
  6. Step 6: Final answer
    x = 38,805.22

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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.