Home / 49,938.21-74,888.04-20,345.67

Finding the Fourth Proportional to 49,938.21, 74,888.04 and 20,345.67

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Solution

The fourth proportional to 49,938.21, 74,888.04 and 20,345.67 is: 30,510.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,938.21 : 74,888.04 = 20,345.67 : x
  2. Step 2: Convert to fraction form
    49,938.21/74,888.04 = 20,345.67/x
  3. Step 3: Cross multiply
    49,938.21x = 74,888.04 × 20,345.67
  4. Step 4: Simplify right side
    49,938.21x = 1,523,647,348.79
  5. Step 5: Solve for x
    x = 1,523,647,348.79/49,938.21
  6. Step 6: Final answer
    x = 30,510.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.