Home / 30,540.83-45,811.80-20,077.52

Finding the Fourth Proportional to 30,540.83, 45,811.80 and 20,077.52

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Solution

The fourth proportional to 30,540.83, 45,811.80 and 20,077.52 is: 30,116.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,540.83 : 45,811.80 = 20,077.52 : x
  2. Step 2: Convert to fraction form
    30,540.83/45,811.80 = 20,077.52/x
  3. Step 3: Cross multiply
    30,540.83x = 45,811.80 × 20,077.52
  4. Step 4: Simplify right side
    30,540.83x = 919,787,101.68
  5. Step 5: Solve for x
    x = 919,787,101.68/30,540.83
  6. Step 6: Final answer
    x = 30,116.64

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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.