Home / 60,681.44-91,003.68-21,231.20

Finding the Fourth Proportional to 60,681.44, 91,003.68 and 21,231.20

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Solution

The fourth proportional to 60,681.44, 91,003.68 and 21,231.20 is: 31,840.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,681.44 : 91,003.68 = 21,231.20 : x
  2. Step 2: Convert to fraction form
    60,681.44/91,003.68 = 21,231.20/x
  3. Step 3: Cross multiply
    60,681.44x = 91,003.68 × 21,231.20
  4. Step 4: Simplify right side
    60,681.44x = 1,932,117,330.82
  5. Step 5: Solve for x
    x = 1,932,117,330.82/60,681.44
  6. Step 6: Final answer
    x = 31,840.33

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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.