Home / 84,042.96-115,976.34-45,801.72

Finding the Fourth Proportional to 84,042.96, 115,976.34 and 45,801.72

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Solution

The fourth proportional to 84,042.96, 115,976.34 and 45,801.72 is: 63,204.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,042.96 : 115,976.34 = 45,801.72 : x
  2. Step 2: Convert to fraction form
    84,042.96/115,976.34 = 45,801.72/x
  3. Step 3: Cross multiply
    84,042.96x = 115,976.34 × 45,801.72
  4. Step 4: Simplify right side
    84,042.96x = 5,311,915,851.30
  5. Step 5: Solve for x
    x = 5,311,915,851.30/84,042.96
  6. Step 6: Final answer
    x = 63,204.77

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1.5x scale

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.