Home / 69,328.86-95,673.84-39,120.57

Finding the Fourth Proportional to 69,328.86, 95,673.84 and 39,120.57

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Solution

The fourth proportional to 69,328.86, 95,673.84 and 39,120.57 is: 53,986.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,328.86 : 95,673.84 = 39,120.57 : x
  2. Step 2: Convert to fraction form
    69,328.86/95,673.84 = 39,120.57/x
  3. Step 3: Cross multiply
    69,328.86x = 95,673.84 × 39,120.57
  4. Step 4: Simplify right side
    69,328.86x = 3,742,815,154.89
  5. Step 5: Solve for x
    x = 3,742,815,154.89/69,328.86
  6. Step 6: Final answer
    x = 53,986.39

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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.