Home / 83,691.09-115,493.70-45,965.34

Finding the Fourth Proportional to 83,691.09, 115,493.70 and 45,965.34

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Solution

The fourth proportional to 83,691.09, 115,493.70 and 45,965.34 is: 63,432.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,691.09 : 115,493.70 = 45,965.34 : x
  2. Step 2: Convert to fraction form
    83,691.09/115,493.70 = 45,965.34/x
  3. Step 3: Cross multiply
    83,691.09x = 115,493.70 × 45,965.34
  4. Step 4: Simplify right side
    83,691.09x = 5,308,707,188.36
  5. Step 5: Solve for x
    x = 5,308,707,188.36/83,691.09
  6. Step 6: Final answer
    x = 63,432.17

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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.