Home / 72,637.82-100,229.28-40,800.62

Finding the Fourth Proportional to 72,637.82, 100,229.28 and 40,800.62

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Solution

The fourth proportional to 72,637.82, 100,229.28 and 40,800.62 is: 56,298.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,637.82 : 100,229.28 = 40,800.62 : x
  2. Step 2: Convert to fraction form
    72,637.82/100,229.28 = 40,800.62/x
  3. Step 3: Cross multiply
    72,637.82x = 100,229.28 × 40,800.62
  4. Step 4: Simplify right side
    72,637.82x = 4,089,416,766.15
  5. Step 5: Solve for x
    x = 4,089,416,766.15/72,637.82
  6. Step 6: Final answer
    x = 56,298.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.