Home / 40,080.42-60,120.63-13,785.39

Finding the Fourth Proportional to 40,080.42, 60,120.63 and 13,785.39

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Solution

The fourth proportional to 40,080.42, 60,120.63 and 13,785.39 is: 20,678.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,080.42 : 60,120.63 = 13,785.39 : x
  2. Step 2: Convert to fraction form
    40,080.42/60,120.63 = 13,785.39/x
  3. Step 3: Cross multiply
    40,080.42x = 60,120.63 × 13,785.39
  4. Step 4: Simplify right side
    40,080.42x = 828,786,331.60
  5. Step 5: Solve for x
    x = 828,786,331.60/40,080.42
  6. Step 6: Final answer
    x = 20,678.09

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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.