Home / 68,447.40-102,670.66-27,920.76

Finding the Fourth Proportional to 68,447.40, 102,670.66 and 27,920.76

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Solution

The fourth proportional to 68,447.40, 102,670.66 and 27,920.76 is: 41,880.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,447.40 : 102,670.66 = 27,920.76 : x
  2. Step 2: Convert to fraction form
    68,447.40/102,670.66 = 27,920.76/x
  3. Step 3: Cross multiply
    68,447.40x = 102,670.66 × 27,920.76
  4. Step 4: Simplify right side
    68,447.40x = 2,866,642,856.90
  5. Step 5: Solve for x
    x = 2,866,642,856.90/68,447.40
  6. Step 6: Final answer
    x = 41,880.96

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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.