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Finding the Fourth Proportional to 37,999.20, 56,998.80 and 36,905.70

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Solution

The fourth proportional to 37,999.20, 56,998.80 and 36,905.70 is: 55,358.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,999.20 : 56,998.80 = 36,905.70 : x
  2. Step 2: Convert to fraction form
    37,999.20/56,998.80 = 36,905.70/x
  3. Step 3: Cross multiply
    37,999.20x = 56,998.80 × 36,905.70
  4. Step 4: Simplify right side
    37,999.20x = 2,103,580,613.16
  5. Step 5: Solve for x
    x = 2,103,580,613.16/37,999.20
  6. Step 6: Final answer
    x = 55,358.55

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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.