Home / 84,579.12-116,663.19-54,402.77

Finding the Fourth Proportional to 84,579.12, 116,663.19 and 54,402.77

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Solution

The fourth proportional to 84,579.12, 116,663.19 and 54,402.77 is: 75,039.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,579.12 : 116,663.19 = 54,402.77 : x
  2. Step 2: Convert to fraction form
    84,579.12/116,663.19 = 54,402.77/x
  3. Step 3: Cross multiply
    84,579.12x = 116,663.19 × 54,402.77
  4. Step 4: Simplify right side
    84,579.12x = 6,346,800,780.68
  5. Step 5: Solve for x
    x = 6,346,800,780.68/84,579.12
  6. Step 6: Final answer
    x = 75,039.81

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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.