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Finding the Fourth Proportional to 37,999.20, 56,998.80 and 37,480.80

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Solution

The fourth proportional to 37,999.20, 56,998.80 and 37,480.80 is: 56,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,999.20 : 56,998.80 = 37,480.80 : x
  2. Step 2: Convert to fraction form
    37,999.20/56,998.80 = 37,480.80/x
  3. Step 3: Cross multiply
    37,999.20x = 56,998.80 × 37,480.80
  4. Step 4: Simplify right side
    37,999.20x = 2,136,360,623.04
  5. Step 5: Solve for x
    x = 2,136,360,623.04/37,999.20
  6. Step 6: Final answer
    x = 56,221.20

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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.