Home / 69,421.32-103,980.76-36,040.68

Finding the Fourth Proportional to 69,421.32, 103,980.76 and 36,040.68

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Solution

The fourth proportional to 69,421.32, 103,980.76 and 36,040.68 is: 53,982.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,421.32 : 103,980.76 = 36,040.68 : x
  2. Step 2: Convert to fraction form
    69,421.32/103,980.76 = 36,040.68/x
  3. Step 3: Cross multiply
    69,421.32x = 103,980.76 × 36,040.68
  4. Step 4: Simplify right side
    69,421.32x = 3,747,537,297.32
  5. Step 5: Solve for x
    x = 3,747,537,297.32/69,421.32
  6. Step 6: Final answer
    x = 53,982.51

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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.