Home / 45,915.40-68,800.20-30,314.80

Finding the Fourth Proportional to 45,915.40, 68,800.20 and 30,314.80

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Solution

The fourth proportional to 45,915.40, 68,800.20 and 30,314.80 is: 45,424.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,915.40 : 68,800.20 = 30,314.80 : x
  2. Step 2: Convert to fraction form
    45,915.40/68,800.20 = 30,314.80/x
  3. Step 3: Cross multiply
    45,915.40x = 68,800.20 × 30,314.80
  4. Step 4: Simplify right side
    45,915.40x = 2,085,664,302.96
  5. Step 5: Solve for x
    x = 2,085,664,302.96/45,915.40
  6. Step 6: Final answer
    x = 45,424.07

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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.