Home / 69,329.85-95,675.21-39,121.57

Finding the Fourth Proportional to 69,329.85, 95,675.21 and 39,121.57

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Solution

The fourth proportional to 69,329.85, 95,675.21 and 39,121.57 is: 53,987.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,329.85 : 95,675.21 = 39,121.57 : x
  2. Step 2: Convert to fraction form
    69,329.85/95,675.21 = 39,121.57/x
  3. Step 3: Cross multiply
    69,329.85x = 95,675.21 × 39,121.57
  4. Step 4: Simplify right side
    69,329.85x = 3,742,964,425.28
  5. Step 5: Solve for x
    x = 3,742,964,425.28/69,329.85
  6. Step 6: Final answer
    x = 53,987.78

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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.