Home / 45,915.20-68,775.60-36,000.80

Finding the Fourth Proportional to 45,915.20, 68,775.60 and 36,000.80

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Solution

The fourth proportional to 45,915.20, 68,775.60 and 36,000.80 is: 53,924.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,915.20 : 68,775.60 = 36,000.80 : x
  2. Step 2: Convert to fraction form
    45,915.20/68,775.60 = 36,000.80/x
  3. Step 3: Cross multiply
    45,915.20x = 68,775.60 × 36,000.80
  4. Step 4: Simplify right side
    45,915.20x = 2,475,976,620.48
  5. Step 5: Solve for x
    x = 2,475,976,620.48/45,915.20
  6. Step 6: Final answer
    x = 53,924.99

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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.