Home / 49,809.92-68,729.78-28,001.88

Finding the Fourth Proportional to 49,809.92, 68,729.78 and 28,001.88

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Solution

The fourth proportional to 49,809.92, 68,729.78 and 28,001.88 is: 38,638.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,809.92 : 68,729.78 = 28,001.88 : x
  2. Step 2: Convert to fraction form
    49,809.92/68,729.78 = 28,001.88/x
  3. Step 3: Cross multiply
    49,809.92x = 68,729.78 × 28,001.88
  4. Step 4: Simplify right side
    49,809.92x = 1,924,563,121.99
  5. Step 5: Solve for x
    x = 1,924,563,121.99/49,809.92
  6. Step 6: Final answer
    x = 38,638.15

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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.