Home / 90,708.06-125,179.83-54,904.62

Finding the Fourth Proportional to 90,708.06, 125,179.83 and 54,904.62

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Solution

The fourth proportional to 90,708.06, 125,179.83 and 54,904.62 is: 75,770.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,708.06 : 125,179.83 = 54,904.62 : x
  2. Step 2: Convert to fraction form
    90,708.06/125,179.83 = 54,904.62/x
  3. Step 3: Cross multiply
    90,708.06x = 125,179.83 × 54,904.62
  4. Step 4: Simplify right side
    90,708.06x = 6,872,950,997.81
  5. Step 5: Solve for x
    x = 6,872,950,997.81/90,708.06
  6. Step 6: Final answer
    x = 75,770.01

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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.