Home / 90,257.36-135,238.08-63,914.80

Finding the Fourth Proportional to 90,257.36, 135,238.08 and 63,914.80

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Solution

The fourth proportional to 90,257.36, 135,238.08 and 63,914.80 is: 95,767.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,257.36 : 135,238.08 = 63,914.80 : x
  2. Step 2: Convert to fraction form
    90,257.36/135,238.08 = 63,914.80/x
  3. Step 3: Cross multiply
    90,257.36x = 135,238.08 × 63,914.80
  4. Step 4: Simplify right side
    90,257.36x = 8,643,714,835.58
  5. Step 5: Solve for x
    x = 8,643,714,835.58/90,257.36
  6. Step 6: Final answer
    x = 95,767.42

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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.