Home / 84,308.23-116,399.60-54,106.57

Finding the Fourth Proportional to 84,308.23, 116,399.60 and 54,106.57

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Solution

The fourth proportional to 84,308.23, 116,399.60 and 54,106.57 is: 74,701.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,308.23 : 116,399.60 = 54,106.57 : x
  2. Step 2: Convert to fraction form
    84,308.23/116,399.60 = 54,106.57/x
  3. Step 3: Cross multiply
    84,308.23x = 116,399.60 × 54,106.57
  4. Step 4: Simplify right side
    84,308.23x = 6,297,983,105.37
  5. Step 5: Solve for x
    x = 6,297,983,105.37/84,308.23
  6. Step 6: Final answer
    x = 74,701.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.