Home / 45,311.92-67,965.48-14,143.60

Finding the Fourth Proportional to 45,311.92, 67,965.48 and 14,143.60

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Solution

The fourth proportional to 45,311.92, 67,965.48 and 14,143.60 is: 21,214.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,311.92 : 67,965.48 = 14,143.60 : x
  2. Step 2: Convert to fraction form
    45,311.92/67,965.48 = 14,143.60/x
  3. Step 3: Cross multiply
    45,311.92x = 67,965.48 × 14,143.60
  4. Step 4: Simplify right side
    45,311.92x = 961,276,562.93
  5. Step 5: Solve for x
    x = 961,276,562.93/45,311.92
  6. Step 6: Final answer
    x = 21,214.65

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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.