Home / 83,138.06-124,726.84-26,978.33

Finding the Fourth Proportional to 83,138.06, 124,726.84 and 26,978.33

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Solution

The fourth proportional to 83,138.06, 124,726.84 and 26,978.33 is: 40,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,138.06 : 124,726.84 = 26,978.33 : x
  2. Step 2: Convert to fraction form
    83,138.06/124,726.84 = 26,978.33/x
  3. Step 3: Cross multiply
    83,138.06x = 124,726.84 × 26,978.33
  4. Step 4: Simplify right side
    83,138.06x = 3,364,922,093.75
  5. Step 5: Solve for x
    x = 3,364,922,093.75/83,138.06
  6. Step 6: Final answer
    x = 40,473.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.