Home / 86,091.66-129,130.20-29,917.35

Finding the Fourth Proportional to 86,091.66, 129,130.20 and 29,917.35

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Solution

The fourth proportional to 86,091.66, 129,130.20 and 29,917.35 is: 44,873.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,091.66 : 129,130.20 = 29,917.35 : x
  2. Step 2: Convert to fraction form
    86,091.66/129,130.20 = 29,917.35/x
  3. Step 3: Cross multiply
    86,091.66x = 129,130.20 × 29,917.35
  4. Step 4: Simplify right side
    86,091.66x = 3,863,233,388.97
  5. Step 5: Solve for x
    x = 3,863,233,388.97/86,091.66
  6. Step 6: Final answer
    x = 44,873.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.