Home / 84,354.22-116,329.26-54,148.78

Finding the Fourth Proportional to 84,354.22, 116,329.26 and 54,148.78

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Solution

The fourth proportional to 84,354.22, 116,329.26 and 54,148.78 is: 74,674.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,354.22 : 116,329.26 = 54,148.78 : x
  2. Step 2: Convert to fraction form
    84,354.22/116,329.26 = 54,148.78/x
  3. Step 3: Cross multiply
    84,354.22x = 116,329.26 × 54,148.78
  4. Step 4: Simplify right side
    84,354.22x = 6,299,087,507.30
  5. Step 5: Solve for x
    x = 6,299,087,507.30/84,354.22
  6. Step 6: Final answer
    x = 74,674.24

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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.