Home / 64,471.28-88,971.90-36,179.06

Finding the Fourth Proportional to 64,471.28, 88,971.90 and 36,179.06

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Solution

The fourth proportional to 64,471.28, 88,971.90 and 36,179.06 is: 49,927.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,471.28 : 88,971.90 = 36,179.06 : x
  2. Step 2: Convert to fraction form
    64,471.28/88,971.90 = 36,179.06/x
  3. Step 3: Cross multiply
    64,471.28x = 88,971.90 × 36,179.06
  4. Step 4: Simplify right side
    64,471.28x = 3,218,919,708.41
  5. Step 5: Solve for x
    x = 3,218,919,708.41/64,471.28
  6. Step 6: Final answer
    x = 49,927.96

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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.