Home / 83,458.08-115,109.33-57,964.48

Finding the Fourth Proportional to 83,458.08, 115,109.33 and 57,964.48

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Solution

The fourth proportional to 83,458.08, 115,109.33 and 57,964.48 is: 79,947.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,458.08 : 115,109.33 = 57,964.48 : x
  2. Step 2: Convert to fraction form
    83,458.08/115,109.33 = 57,964.48/x
  3. Step 3: Cross multiply
    83,458.08x = 115,109.33 × 57,964.48
  4. Step 4: Simplify right side
    83,458.08x = 6,672,251,879.00
  5. Step 5: Solve for x
    x = 6,672,251,879.00/83,458.08
  6. Step 6: Final answer
    x = 79,947.34

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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.