Home / 45,082.13-67,629.35-18,780.72

Finding the Fourth Proportional to 45,082.13, 67,629.35 and 18,780.72

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Solution

The fourth proportional to 45,082.13, 67,629.35 and 18,780.72 is: 28,173.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,082.13 : 67,629.35 = 18,780.72 : x
  2. Step 2: Convert to fraction form
    45,082.13/67,629.35 = 18,780.72/x
  3. Step 3: Cross multiply
    45,082.13x = 67,629.35 × 18,780.72
  4. Step 4: Simplify right side
    45,082.13x = 1,270,127,792.23
  5. Step 5: Solve for x
    x = 1,270,127,792.23/45,082.13
  6. Step 6: Final answer
    x = 28,173.64

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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.