Home / 90,028.40-135,057.12-27,698.84

Finding the Fourth Proportional to 90,028.40, 135,057.12 and 27,698.84

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Solution

The fourth proportional to 90,028.40, 135,057.12 and 27,698.84 is: 41,552.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,028.40 : 135,057.12 = 27,698.84 : x
  2. Step 2: Convert to fraction form
    90,028.40/135,057.12 = 27,698.84/x
  3. Step 3: Cross multiply
    90,028.40x = 135,057.12 × 27,698.84
  4. Step 4: Simplify right side
    90,028.40x = 3,740,925,557.74
  5. Step 5: Solve for x
    x = 3,740,925,557.74/90,028.40
  6. Step 6: Final answer
    x = 41,552.73

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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.