Home / 45,905.28-68,848.96-12,616.80

Finding the Fourth Proportional to 45,905.28, 68,848.96 and 12,616.80

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Solution

The fourth proportional to 45,905.28, 68,848.96 and 12,616.80 is: 18,922.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,905.28 : 68,848.96 = 12,616.80 : x
  2. Step 2: Convert to fraction form
    45,905.28/68,848.96 = 12,616.80/x
  3. Step 3: Cross multiply
    45,905.28x = 68,848.96 × 12,616.80
  4. Step 4: Simplify right side
    45,905.28x = 868,653,558.53
  5. Step 5: Solve for x
    x = 868,653,558.53/45,905.28
  6. Step 6: Final answer
    x = 18,922.74

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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.