Home / 90,583.66-135,265.50-73,976.64

Finding the Fourth Proportional to 90,583.66, 135,265.50 and 73,976.64

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Solution

The fourth proportional to 90,583.66, 135,265.50 and 73,976.64 is: 110,466.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,583.66 : 135,265.50 = 73,976.64 : x
  2. Step 2: Convert to fraction form
    90,583.66/135,265.50 = 73,976.64/x
  3. Step 3: Cross multiply
    90,583.66x = 135,265.50 × 73,976.64
  4. Step 4: Simplify right side
    90,583.66x = 10,006,486,521.59
  5. Step 5: Solve for x
    x = 10,006,486,521.59/90,583.66
  6. Step 6: Final answer
    x = 110,466.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.