Home / 81,402.52-112,336.60-53,091.96

Finding the Fourth Proportional to 81,402.52, 112,336.60 and 53,091.96

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Solution

The fourth proportional to 81,402.52, 112,336.60 and 53,091.96 is: 73,267.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,402.52 : 112,336.60 = 53,091.96 : x
  2. Step 2: Convert to fraction form
    81,402.52/112,336.60 = 53,091.96/x
  3. Step 3: Cross multiply
    81,402.52x = 112,336.60 × 53,091.96
  4. Step 4: Simplify right side
    81,402.52x = 5,964,170,273.74
  5. Step 5: Solve for x
    x = 5,964,170,273.74/81,402.52
  6. Step 6: Final answer
    x = 73,267.64

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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.