Home / 45,257.06-67,885.63-18,961.83

Finding the Fourth Proportional to 45,257.06, 67,885.63 and 18,961.83

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Solution

The fourth proportional to 45,257.06, 67,885.63 and 18,961.83 is: 28,442.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,257.06 : 67,885.63 = 18,961.83 : x
  2. Step 2: Convert to fraction form
    45,257.06/67,885.63 = 18,961.83/x
  3. Step 3: Cross multiply
    45,257.06x = 67,885.63 × 18,961.83
  4. Step 4: Simplify right side
    45,257.06x = 1,287,235,728.10
  5. Step 5: Solve for x
    x = 1,287,235,728.10/45,257.06
  6. Step 6: Final answer
    x = 28,442.76

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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.