Home / 40,708.59-61,071.62-12,628.05

Finding the Fourth Proportional to 40,708.59, 61,071.62 and 12,628.05

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Solution

The fourth proportional to 40,708.59, 61,071.62 and 12,628.05 is: 18,944.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,708.59 : 61,071.62 = 12,628.05 : x
  2. Step 2: Convert to fraction form
    40,708.59/61,071.62 = 12,628.05/x
  3. Step 3: Cross multiply
    40,708.59x = 61,071.62 × 12,628.05
  4. Step 4: Simplify right side
    40,708.59x = 771,215,470.94
  5. Step 5: Solve for x
    x = 771,215,470.94/40,708.59
  6. Step 6: Final answer
    x = 18,944.78

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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.