Home / 90,199.35-124,481.33-49,914.81

Finding the Fourth Proportional to 90,199.35, 124,481.33 and 49,914.81

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Solution

The fourth proportional to 90,199.35, 124,481.33 and 49,914.81 is: 68,885.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,199.35 : 124,481.33 = 49,914.81 : x
  2. Step 2: Convert to fraction form
    90,199.35/124,481.33 = 49,914.81/x
  3. Step 3: Cross multiply
    90,199.35x = 124,481.33 × 49,914.81
  4. Step 4: Simplify right side
    90,199.35x = 6,213,461,935.50
  5. Step 5: Solve for x
    x = 6,213,461,935.50/90,199.35
  6. Step 6: Final answer
    x = 68,885.88

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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.