Home / 67,203.57-100,790.33-19,808.55

Finding the Fourth Proportional to 67,203.57, 100,790.33 and 19,808.55

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Solution

The fourth proportional to 67,203.57, 100,790.33 and 19,808.55 is: 29,708.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,203.57 : 100,790.33 = 19,808.55 : x
  2. Step 2: Convert to fraction form
    67,203.57/100,790.33 = 19,808.55/x
  3. Step 3: Cross multiply
    67,203.57x = 100,790.33 × 19,808.55
  4. Step 4: Simplify right side
    67,203.57x = 1,996,510,192.28
  5. Step 5: Solve for x
    x = 1,996,510,192.28/67,203.57
  6. Step 6: Final answer
    x = 29,708.39

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1.5x scale

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.