Home / 56,367.36-77,791.68-31,219.20

Finding the Fourth Proportional to 56,367.36, 77,791.68 and 31,219.20

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Solution

The fourth proportional to 56,367.36, 77,791.68 and 31,219.20 is: 43,085.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,367.36 : 77,791.68 = 31,219.20 : x
  2. Step 2: Convert to fraction form
    56,367.36/77,791.68 = 31,219.20/x
  3. Step 3: Cross multiply
    56,367.36x = 77,791.68 × 31,219.20
  4. Step 4: Simplify right side
    56,367.36x = 2,428,594,016.26
  5. Step 5: Solve for x
    x = 2,428,594,016.26/56,367.36
  6. Step 6: Final answer
    x = 43,085.11

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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.