Home / 78,040.86-117,016.58-23,991.47

Finding the Fourth Proportional to 78,040.86, 117,016.58 and 23,991.47

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Solution

The fourth proportional to 78,040.86, 117,016.58 and 23,991.47 is: 35,973.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,040.86 : 117,016.58 = 23,991.47 : x
  2. Step 2: Convert to fraction form
    78,040.86/117,016.58 = 23,991.47/x
  3. Step 3: Cross multiply
    78,040.86x = 117,016.58 × 23,991.47
  4. Step 4: Simplify right side
    78,040.86x = 2,807,399,768.57
  5. Step 5: Solve for x
    x = 2,807,399,768.57/78,040.86
  6. Step 6: Final answer
    x = 35,973.46

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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.