Home / 55,053.88-75,975.76-31,180.20

Finding the Fourth Proportional to 55,053.88, 75,975.76 and 31,180.20

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Solution

The fourth proportional to 55,053.88, 75,975.76 and 31,180.20 is: 43,029.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,053.88 : 75,975.76 = 31,180.20 : x
  2. Step 2: Convert to fraction form
    55,053.88/75,975.76 = 31,180.20/x
  3. Step 3: Cross multiply
    55,053.88x = 75,975.76 × 31,180.20
  4. Step 4: Simplify right side
    55,053.88x = 2,368,939,391.95
  5. Step 5: Solve for x
    x = 2,368,939,391.95/55,053.88
  6. Step 6: Final answer
    x = 43,029.47

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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.