Home / 45,082.04-67,629.20-18,780.63

Finding the Fourth Proportional to 45,082.04, 67,629.20 and 18,780.63

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Solution

The fourth proportional to 45,082.04, 67,629.20 and 18,780.63 is: 28,173.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,082.04 : 67,629.20 = 18,780.63 : x
  2. Step 2: Convert to fraction form
    45,082.04/67,629.20 = 18,780.63/x
  3. Step 3: Cross multiply
    45,082.04x = 67,629.20 × 18,780.63
  4. Step 4: Simplify right side
    45,082.04x = 1,270,118,982.40
  5. Step 5: Solve for x
    x = 1,270,118,982.40/45,082.04
  6. Step 6: Final answer
    x = 28,173.50

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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.