Home / 90,063.87-135,095.60-84,583.38

Finding the Fourth Proportional to 90,063.87, 135,095.60 and 84,583.38

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Solution

The fourth proportional to 90,063.87, 135,095.60 and 84,583.38 is: 126,874.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,063.87 : 135,095.60 = 84,583.38 : x
  2. Step 2: Convert to fraction form
    90,063.87/135,095.60 = 84,583.38/x
  3. Step 3: Cross multiply
    90,063.87x = 135,095.60 × 84,583.38
  4. Step 4: Simplify right side
    90,063.87x = 11,426,842,048.21
  5. Step 5: Solve for x
    x = 11,426,842,048.21/90,063.87
  6. Step 6: Final answer
    x = 126,874.87

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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.