Home / 79,479.40-109,635.96-49,619.56

Finding the Fourth Proportional to 79,479.40, 109,635.96 and 49,619.56

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Solution

The fourth proportional to 79,479.40, 109,635.96 and 49,619.56 is: 68,446.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,479.40 : 109,635.96 = 49,619.56 : x
  2. Step 2: Convert to fraction form
    79,479.40/109,635.96 = 49,619.56/x
  3. Step 3: Cross multiply
    79,479.40x = 109,635.96 × 49,619.56
  4. Step 4: Simplify right side
    79,479.40x = 5,440,088,095.38
  5. Step 5: Solve for x
    x = 5,440,088,095.38/79,479.40
  6. Step 6: Final answer
    x = 68,446.52

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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.