Home / 45,741.40-68,655.30-28,245.40

Finding the Fourth Proportional to 45,741.40, 68,655.30 and 28,245.40

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Solution

The fourth proportional to 45,741.40, 68,655.30 and 28,245.40 is: 42,394.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,741.40 : 68,655.30 = 28,245.40 : x
  2. Step 2: Convert to fraction form
    45,741.40/68,655.30 = 28,245.40/x
  3. Step 3: Cross multiply
    45,741.40x = 68,655.30 × 28,245.40
  4. Step 4: Simplify right side
    45,741.40x = 1,939,196,410.62
  5. Step 5: Solve for x
    x = 1,939,196,410.62/45,741.40
  6. Step 6: Final answer
    x = 42,394.78

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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.