Home / 84,890.54-117,149.64-53,077.88

Finding the Fourth Proportional to 84,890.54, 117,149.64 and 53,077.88

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Solution

The fourth proportional to 84,890.54, 117,149.64 and 53,077.88 is: 73,247.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,890.54 : 117,149.64 = 53,077.88 : x
  2. Step 2: Convert to fraction form
    84,890.54/117,149.64 = 53,077.88/x
  3. Step 3: Cross multiply
    84,890.54x = 117,149.64 × 53,077.88
  4. Step 4: Simplify right side
    84,890.54x = 6,218,054,533.96
  5. Step 5: Solve for x
    x = 6,218,054,533.96/84,890.54
  6. Step 6: Final answer
    x = 73,247.91

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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.