Home / 56,619.66-78,133.22-31,468.62

Finding the Fourth Proportional to 56,619.66, 78,133.22 and 31,468.62

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Solution

The fourth proportional to 56,619.66, 78,133.22 and 31,468.62 is: 43,425.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,619.66 : 78,133.22 = 31,468.62 : x
  2. Step 2: Convert to fraction form
    56,619.66/78,133.22 = 31,468.62/x
  3. Step 3: Cross multiply
    56,619.66x = 78,133.22 × 31,468.62
  4. Step 4: Simplify right side
    56,619.66x = 2,458,744,609.56
  5. Step 5: Solve for x
    x = 2,458,744,609.56/56,619.66
  6. Step 6: Final answer
    x = 43,425.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.