Home / 45,278.40-67,884.96-30,450.72

Finding the Fourth Proportional to 45,278.40, 67,884.96 and 30,450.72

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Solution

The fourth proportional to 45,278.40, 67,884.96 and 30,450.72 is: 45,654.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,278.40 : 67,884.96 = 30,450.72 : x
  2. Step 2: Convert to fraction form
    45,278.40/67,884.96 = 30,450.72/x
  3. Step 3: Cross multiply
    45,278.40x = 67,884.96 × 30,450.72
  4. Step 4: Simplify right side
    45,278.40x = 2,067,145,909.17
  5. Step 5: Solve for x
    x = 2,067,145,909.17/45,278.40
  6. Step 6: Final answer
    x = 45,654.13

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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.