Home / 90,218.25-135,376.92-45,848.84

Finding the Fourth Proportional to 90,218.25, 135,376.92 and 45,848.84

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Solution

The fourth proportional to 90,218.25, 135,376.92 and 45,848.84 is: 68,798.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,218.25 : 135,376.92 = 45,848.84 : x
  2. Step 2: Convert to fraction form
    90,218.25/135,376.92 = 45,848.84/x
  3. Step 3: Cross multiply
    90,218.25x = 135,376.92 × 45,848.84
  4. Step 4: Simplify right side
    90,218.25x = 6,206,874,067.89
  5. Step 5: Solve for x
    x = 6,206,874,067.89/90,218.25
  6. Step 6: Final answer
    x = 68,798.43

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1.5x scale

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.