Home / 81,907.45-113,067.15-55,065.52

Finding the Fourth Proportional to 81,907.45, 113,067.15 and 55,065.52

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Solution

The fourth proportional to 81,907.45, 113,067.15 and 55,065.52 is: 76,013.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,907.45 : 113,067.15 = 55,065.52 : x
  2. Step 2: Convert to fraction form
    81,907.45/113,067.15 = 55,065.52/x
  3. Step 3: Cross multiply
    81,907.45x = 113,067.15 × 55,065.52
  4. Step 4: Simplify right side
    81,907.45x = 6,226,101,409.67
  5. Step 5: Solve for x
    x = 6,226,101,409.67/81,907.45
  6. Step 6: Final answer
    x = 76,013.86

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1.5x scale

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.