Home / 45,051.71-67,490.09-21,694.55

Finding the Fourth Proportional to 45,051.71, 67,490.09 and 21,694.55

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Solution

The fourth proportional to 45,051.71, 67,490.09 and 21,694.55 is: 32,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,051.71 : 67,490.09 = 21,694.55 : x
  2. Step 2: Convert to fraction form
    45,051.71/67,490.09 = 21,694.55/x
  3. Step 3: Cross multiply
    45,051.71x = 67,490.09 × 21,694.55
  4. Step 4: Simplify right side
    45,051.71x = 1,464,167,023.54
  5. Step 5: Solve for x
    x = 1,464,167,023.54/45,051.71
  6. Step 6: Final answer
    x = 32,499.70

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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.