Home / 53,220.20-79,830.30-47,229.80

Finding the Fourth Proportional to 53,220.20, 79,830.30 and 47,229.80

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Solution

The fourth proportional to 53,220.20, 79,830.30 and 47,229.80 is: 70,844.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,220.20 : 79,830.30 = 47,229.80 : x
  2. Step 2: Convert to fraction form
    53,220.20/79,830.30 = 47,229.80/x
  3. Step 3: Cross multiply
    53,220.20x = 79,830.30 × 47,229.80
  4. Step 4: Simplify right side
    53,220.20x = 3,770,369,102.94
  5. Step 5: Solve for x
    x = 3,770,369,102.94/53,220.20
  6. Step 6: Final answer
    x = 70,844.70

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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.