Home / 56,891.50-78,507.40-31,736.14

Finding the Fourth Proportional to 56,891.50, 78,507.40 and 31,736.14

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Solution

The fourth proportional to 56,891.50, 78,507.40 and 31,736.14 is: 43,794.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,891.50 : 78,507.40 = 31,736.14 : x
  2. Step 2: Convert to fraction form
    56,891.50/78,507.40 = 31,736.14/x
  3. Step 3: Cross multiply
    56,891.50x = 78,507.40 × 31,736.14
  4. Step 4: Simplify right side
    56,891.50x = 2,491,521,837.44
  5. Step 5: Solve for x
    x = 2,491,521,837.44/56,891.50
  6. Step 6: Final answer
    x = 43,794.27

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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.