Home / 90,662.92-135,855.86-38,043.70

Finding the Fourth Proportional to 90,662.92, 135,855.86 and 38,043.70

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Solution

The fourth proportional to 90,662.92, 135,855.86 and 38,043.70 is: 57,007.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,662.92 : 135,855.86 = 38,043.70 : x
  2. Step 2: Convert to fraction form
    90,662.92/135,855.86 = 38,043.70/x
  3. Step 3: Cross multiply
    90,662.92x = 135,855.86 × 38,043.70
  4. Step 4: Simplify right side
    90,662.92x = 5,168,459,051.22
  5. Step 5: Solve for x
    x = 5,168,459,051.22/90,662.92
  6. Step 6: Final answer
    x = 57,007.42

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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.