Home / 69,435.55-95,820.37-39,220.80

Finding the Fourth Proportional to 69,435.55, 95,820.37 and 39,220.80

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Solution

The fourth proportional to 69,435.55, 95,820.37 and 39,220.80 is: 54,124.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,435.55 : 95,820.37 = 39,220.80 : x
  2. Step 2: Convert to fraction form
    69,435.55/95,820.37 = 39,220.80/x
  3. Step 3: Cross multiply
    69,435.55x = 95,820.37 × 39,220.80
  4. Step 4: Simplify right side
    69,435.55x = 3,758,151,567.70
  5. Step 5: Solve for x
    x = 3,758,151,567.70/69,435.55
  6. Step 6: Final answer
    x = 54,124.31

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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.