Home / 68,891.20-95,064.60-38,670.68

Finding the Fourth Proportional to 68,891.20, 95,064.60 and 38,670.68

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Solution

The fourth proportional to 68,891.20, 95,064.60 and 38,670.68 is: 53,362.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,891.20 : 95,064.60 = 38,670.68 : x
  2. Step 2: Convert to fraction form
    68,891.20/95,064.60 = 38,670.68/x
  3. Step 3: Cross multiply
    68,891.20x = 95,064.60 × 38,670.68
  4. Step 4: Simplify right side
    68,891.20x = 3,676,213,141.84
  5. Step 5: Solve for x
    x = 3,676,213,141.84/68,891.20
  6. Step 6: Final answer
    x = 53,362.59

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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.