Home / 66,938.39-100,358.37-31,902.65

Finding the Fourth Proportional to 66,938.39, 100,358.37 and 31,902.65

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Solution

The fourth proportional to 66,938.39, 100,358.37 and 31,902.65 is: 47,830.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,938.39 : 100,358.37 = 31,902.65 : x
  2. Step 2: Convert to fraction form
    66,938.39/100,358.37 = 31,902.65/x
  3. Step 3: Cross multiply
    66,938.39x = 100,358.37 × 31,902.65
  4. Step 4: Simplify right side
    66,938.39x = 3,201,697,450.89
  5. Step 5: Solve for x
    x = 3,201,697,450.89/66,938.39
  6. Step 6: Final answer
    x = 47,830.52

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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.