Home / 55,730.25-76,907.75-30,581.37

Finding the Fourth Proportional to 55,730.25, 76,907.75 and 30,581.37

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Solution

The fourth proportional to 55,730.25, 76,907.75 and 30,581.37 is: 42,202.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,730.25 : 76,907.75 = 30,581.37 : x
  2. Step 2: Convert to fraction form
    55,730.25/76,907.75 = 30,581.37/x
  3. Step 3: Cross multiply
    55,730.25x = 76,907.75 × 30,581.37
  4. Step 4: Simplify right side
    55,730.25x = 2,351,944,205.71
  5. Step 5: Solve for x
    x = 2,351,944,205.71/55,730.25
  6. Step 6: Final answer
    x = 42,202.29

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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.