Home / 90,589.88-125,025.55-54,780.14

Finding the Fourth Proportional to 90,589.88, 125,025.55 and 54,780.14

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Solution

The fourth proportional to 90,589.88, 125,025.55 and 54,780.14 is: 75,603.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,589.88 : 125,025.55 = 54,780.14 : x
  2. Step 2: Convert to fraction form
    90,589.88/125,025.55 = 54,780.14/x
  3. Step 3: Cross multiply
    90,589.88x = 125,025.55 × 54,780.14
  4. Step 4: Simplify right side
    90,589.88x = 6,848,917,132.58
  5. Step 5: Solve for x
    x = 6,848,917,132.58/90,589.88
  6. Step 6: Final answer
    x = 75,603.56

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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.