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Finding the Fourth Proportional to 46,652.56, 69,978.47 and 21,678.71

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Solution

The fourth proportional to 46,652.56, 69,978.47 and 21,678.71 is: 32,517.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,652.56 : 69,978.47 = 21,678.71 : x
  2. Step 2: Convert to fraction form
    46,652.56/69,978.47 = 21,678.71/x
  3. Step 3: Cross multiply
    46,652.56x = 69,978.47 × 21,678.71
  4. Step 4: Simplify right side
    46,652.56x = 1,517,042,499.09
  5. Step 5: Solve for x
    x = 1,517,042,499.09/46,652.56
  6. Step 6: Final answer
    x = 32,517.88

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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.