Home / 45,368.05-67,853.12-40,405.43

Finding the Fourth Proportional to 45,368.05, 67,853.12 and 40,405.43

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Solution

The fourth proportional to 45,368.05, 67,853.12 and 40,405.43 is: 60,430.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,368.05 : 67,853.12 = 40,405.43 : x
  2. Step 2: Convert to fraction form
    45,368.05/67,853.12 = 40,405.43/x
  3. Step 3: Cross multiply
    45,368.05x = 67,853.12 × 40,405.43
  4. Step 4: Simplify right side
    45,368.05x = 2,741,634,571.69
  5. Step 5: Solve for x
    x = 2,741,634,571.69/45,368.05
  6. Step 6: Final answer
    x = 60,430.96

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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.