Home / 45,391.04-68,049.84-20,412.80

Finding the Fourth Proportional to 45,391.04, 68,049.84 and 20,412.80

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Solution

The fourth proportional to 45,391.04, 68,049.84 and 20,412.80 is: 30,602.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,391.04 : 68,049.84 = 20,412.80 : x
  2. Step 2: Convert to fraction form
    45,391.04/68,049.84 = 20,412.80/x
  3. Step 3: Cross multiply
    45,391.04x = 68,049.84 × 20,412.80
  4. Step 4: Simplify right side
    45,391.04x = 1,389,087,773.95
  5. Step 5: Solve for x
    x = 1,389,087,773.95/45,391.04
  6. Step 6: Final answer
    x = 30,602.69

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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.