Home / 71,829.80-99,132.02-39,998.69

Finding the Fourth Proportional to 71,829.80, 99,132.02 and 39,998.69

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Solution

The fourth proportional to 71,829.80, 99,132.02 and 39,998.69 is: 55,202.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,829.80 : 99,132.02 = 39,998.69 : x
  2. Step 2: Convert to fraction form
    71,829.80/99,132.02 = 39,998.69/x
  3. Step 3: Cross multiply
    71,829.80x = 99,132.02 × 39,998.69
  4. Step 4: Simplify right side
    71,829.80x = 3,965,150,241.40
  5. Step 5: Solve for x
    x = 3,965,150,241.40/71,829.80
  6. Step 6: Final answer
    x = 55,202.03

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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.