Home / 45,691.20-68,536.80-14,529.60

Finding the Fourth Proportional to 45,691.20, 68,536.80 and 14,529.60

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Solution

The fourth proportional to 45,691.20, 68,536.80 and 14,529.60 is: 21,794.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,691.20 : 68,536.80 = 14,529.60 : x
  2. Step 2: Convert to fraction form
    45,691.20/68,536.80 = 14,529.60/x
  3. Step 3: Cross multiply
    45,691.20x = 68,536.80 × 14,529.60
  4. Step 4: Simplify right side
    45,691.20x = 995,812,289.28
  5. Step 5: Solve for x
    x = 995,812,289.28/45,691.20
  6. Step 6: Final answer
    x = 21,794.40

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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.