Home / 80,856.30-121,297.40-34,116.06

Finding the Fourth Proportional to 80,856.30, 121,297.40 and 34,116.06

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Solution

The fourth proportional to 80,856.30, 121,297.40 and 34,116.06 is: 51,179.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,856.30 : 121,297.40 = 34,116.06 : x
  2. Step 2: Convert to fraction form
    80,856.30/121,297.40 = 34,116.06/x
  3. Step 3: Cross multiply
    80,856.30x = 121,297.40 × 34,116.06
  4. Step 4: Simplify right side
    80,856.30x = 4,138,189,376.24
  5. Step 5: Solve for x
    x = 4,138,189,376.24/80,856.30
  6. Step 6: Final answer
    x = 51,179.55

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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.