Home / 45,915.13-68,861.34-12,633.58

Finding the Fourth Proportional to 45,915.13, 68,861.34 and 12,633.58

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Solution

The fourth proportional to 45,915.13, 68,861.34 and 12,633.58 is: 18,947.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,915.13 : 68,861.34 = 12,633.58 : x
  2. Step 2: Convert to fraction form
    45,915.13/68,861.34 = 12,633.58/x
  3. Step 3: Cross multiply
    45,915.13x = 68,861.34 × 12,633.58
  4. Step 4: Simplify right side
    45,915.13x = 869,965,247.80
  5. Step 5: Solve for x
    x = 869,965,247.80/45,915.13
  6. Step 6: Final answer
    x = 18,947.25

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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.