Home / 84,423.64-126,313.05-73,815.33

Finding the Fourth Proportional to 84,423.64, 126,313.05 and 73,815.33

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Solution

The fourth proportional to 84,423.64, 126,313.05 and 73,815.33 is: 110,441.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,423.64 : 126,313.05 = 73,815.33 : x
  2. Step 2: Convert to fraction form
    84,423.64/126,313.05 = 73,815.33/x
  3. Step 3: Cross multiply
    84,423.64x = 126,313.05 × 73,815.33
  4. Step 4: Simplify right side
    84,423.64x = 9,323,839,469.06
  5. Step 5: Solve for x
    x = 9,323,839,469.06/84,423.64
  6. Step 6: Final answer
    x = 110,441.10

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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.