Home / 40,518.80-60,778.20-36,141.20

Finding the Fourth Proportional to 40,518.80, 60,778.20 and 36,141.20

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Solution

The fourth proportional to 40,518.80, 60,778.20 and 36,141.20 is: 54,211.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,518.80 : 60,778.20 = 36,141.20 : x
  2. Step 2: Convert to fraction form
    40,518.80/60,778.20 = 36,141.20/x
  3. Step 3: Cross multiply
    40,518.80x = 60,778.20 × 36,141.20
  4. Step 4: Simplify right side
    40,518.80x = 2,196,597,081.84
  5. Step 5: Solve for x
    x = 2,196,597,081.84/40,518.80
  6. Step 6: Final answer
    x = 54,211.80

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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.