Home / 45,015.20-67,530.06-13,850.42

Finding the Fourth Proportional to 45,015.20, 67,530.06 and 13,850.42

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Solution

The fourth proportional to 45,015.20, 67,530.06 and 13,850.42 is: 20,777.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,015.20 : 67,530.06 = 13,850.42 : x
  2. Step 2: Convert to fraction form
    45,015.20/67,530.06 = 13,850.42/x
  3. Step 3: Cross multiply
    45,015.20x = 67,530.06 × 13,850.42
  4. Step 4: Simplify right side
    45,015.20x = 935,319,693.63
  5. Step 5: Solve for x
    x = 935,319,693.63/45,015.20
  6. Step 6: Final answer
    x = 20,777.86

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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.