Home / 90,410.40-135,637.20-43,624.80

Finding the Fourth Proportional to 90,410.40, 135,637.20 and 43,624.80

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Solution

The fourth proportional to 90,410.40, 135,637.20 and 43,624.80 is: 65,447.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,410.40 : 135,637.20 = 43,624.80 : x
  2. Step 2: Convert to fraction form
    90,410.40/135,637.20 = 43,624.80/x
  3. Step 3: Cross multiply
    90,410.40x = 135,637.20 × 43,624.80
  4. Step 4: Simplify right side
    90,410.40x = 5,917,145,722.56
  5. Step 5: Solve for x
    x = 5,917,145,722.56/90,410.40
  6. Step 6: Final answer
    x = 65,447.62

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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.