Home / 55,651.17-76,802.36-31,443.75

Finding the Fourth Proportional to 55,651.17, 76,802.36 and 31,443.75

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Solution

The fourth proportional to 55,651.17, 76,802.36 and 31,443.75 is: 43,394.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,651.17 : 76,802.36 = 31,443.75 : x
  2. Step 2: Convert to fraction form
    55,651.17/76,802.36 = 31,443.75/x
  3. Step 3: Cross multiply
    55,651.17x = 76,802.36 × 31,443.75
  4. Step 4: Simplify right side
    55,651.17x = 2,414,954,050.03
  5. Step 5: Solve for x
    x = 2,414,954,050.03/55,651.17
  6. Step 6: Final answer
    x = 43,394.49

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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.