Home / 74,662.47-111,990.90-18,502.74

Finding the Fourth Proportional to 74,662.47, 111,990.90 and 18,502.74

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Solution

The fourth proportional to 74,662.47, 111,990.90 and 18,502.74 is: 27,753.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,662.47 : 111,990.90 = 18,502.74 : x
  2. Step 2: Convert to fraction form
    74,662.47/111,990.90 = 18,502.74/x
  3. Step 3: Cross multiply
    74,662.47x = 111,990.90 × 18,502.74
  4. Step 4: Simplify right side
    74,662.47x = 2,072,138,505.07
  5. Step 5: Solve for x
    x = 2,072,138,505.07/74,662.47
  6. Step 6: Final answer
    x = 27,753.41

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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.