Home / 45,454.06-68,190.33-19,158.76

Finding the Fourth Proportional to 45,454.06, 68,190.33 and 19,158.76

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Solution

The fourth proportional to 45,454.06, 68,190.33 and 19,158.76 is: 28,742.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,454.06 : 68,190.33 = 19,158.76 : x
  2. Step 2: Convert to fraction form
    45,454.06/68,190.33 = 19,158.76/x
  3. Step 3: Cross multiply
    45,454.06x = 68,190.33 × 19,158.76
  4. Step 4: Simplify right side
    45,454.06x = 1,306,441,825.84
  5. Step 5: Solve for x
    x = 1,306,441,825.84/45,454.06
  6. Step 6: Final answer
    x = 28,742.03

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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.