Home / 86,258.32-129,387.40-38,817.96

Finding the Fourth Proportional to 86,258.32, 129,387.40 and 38,817.96

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Solution

The fourth proportional to 86,258.32, 129,387.40 and 38,817.96 is: 58,226.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,258.32 : 129,387.40 = 38,817.96 : x
  2. Step 2: Convert to fraction form
    86,258.32/129,387.40 = 38,817.96/x
  3. Step 3: Cross multiply
    86,258.32x = 129,387.40 × 38,817.96
  4. Step 4: Simplify right side
    86,258.32x = 5,022,554,917.70
  5. Step 5: Solve for x
    x = 5,022,554,917.70/86,258.32
  6. Step 6: Final answer
    x = 58,226.90

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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.