Home / 55,811.25-77,020.13-30,317.92

Finding the Fourth Proportional to 55,811.25, 77,020.13 and 30,317.92

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Solution

The fourth proportional to 55,811.25, 77,020.13 and 30,317.92 is: 41,839.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,811.25 : 77,020.13 = 30,317.92 : x
  2. Step 2: Convert to fraction form
    55,811.25/77,020.13 = 30,317.92/x
  3. Step 3: Cross multiply
    55,811.25x = 77,020.13 × 30,317.92
  4. Step 4: Simplify right side
    55,811.25x = 2,335,090,139.73
  5. Step 5: Solve for x
    x = 2,335,090,139.73/55,811.25
  6. Step 6: Final answer
    x = 41,839.06

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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.