Home / 91,540.44-137,296.98-31,578.36

Finding the Fourth Proportional to 91,540.44, 137,296.98 and 31,578.36

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Solution

The fourth proportional to 91,540.44, 137,296.98 and 31,578.36 is: 47,362.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,540.44 : 137,296.98 = 31,578.36 : x
  2. Step 2: Convert to fraction form
    91,540.44/137,296.98 = 31,578.36/x
  3. Step 3: Cross multiply
    91,540.44x = 137,296.98 × 31,578.36
  4. Step 4: Simplify right side
    91,540.44x = 4,335,613,461.35
  5. Step 5: Solve for x
    x = 4,335,613,461.35/91,540.44
  6. Step 6: Final answer
    x = 47,362.82

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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.