Home / 90,600.96-135,704.64-55,434.24

Finding the Fourth Proportional to 90,600.96, 135,704.64 and 55,434.24

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Solution

The fourth proportional to 90,600.96, 135,704.64 and 55,434.24 is: 83,030.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,600.96 : 135,704.64 = 55,434.24 : x
  2. Step 2: Convert to fraction form
    90,600.96/135,704.64 = 55,434.24/x
  3. Step 3: Cross multiply
    90,600.96x = 135,704.64 × 55,434.24
  4. Step 4: Simplify right side
    90,600.96x = 7,522,683,582.87
  5. Step 5: Solve for x
    x = 7,522,683,582.87/90,600.96
  6. Step 6: Final answer
    x = 83,030.95

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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.