Home / 90,976.67-136,400.42-34,769.41

Finding the Fourth Proportional to 90,976.67, 136,400.42 and 34,769.41

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Solution

The fourth proportional to 90,976.67, 136,400.42 and 34,769.41 is: 52,129.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,976.67 : 136,400.42 = 34,769.41 : x
  2. Step 2: Convert to fraction form
    90,976.67/136,400.42 = 34,769.41/x
  3. Step 3: Cross multiply
    90,976.67x = 136,400.42 × 34,769.41
  4. Step 4: Simplify right side
    90,976.67x = 4,742,562,127.15
  5. Step 5: Solve for x
    x = 4,742,562,127.15/90,976.67
  6. Step 6: Final answer
    x = 52,129.43

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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.