Home / 55,053.87-75,975.75-31,180.20

Finding the Fourth Proportional to 55,053.87, 75,975.75 and 31,180.20

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Solution

The fourth proportional to 55,053.87, 75,975.75 and 31,180.20 is: 43,029.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,053.87 : 75,975.75 = 31,180.20 : x
  2. Step 2: Convert to fraction form
    55,053.87/75,975.75 = 31,180.20/x
  3. Step 3: Cross multiply
    55,053.87x = 75,975.75 × 31,180.20
  4. Step 4: Simplify right side
    55,053.87x = 2,368,939,080.15
  5. Step 5: Solve for x
    x = 2,368,939,080.15/55,053.87
  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.