Home / 45,654.10-68,480.19-21,030.10

Finding the Fourth Proportional to 45,654.10, 68,480.19 and 21,030.10

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Solution

The fourth proportional to 45,654.10, 68,480.19 and 21,030.10 is: 31,544.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,654.10 : 68,480.19 = 21,030.10 : x
  2. Step 2: Convert to fraction form
    45,654.10/68,480.19 = 21,030.10/x
  3. Step 3: Cross multiply
    45,654.10x = 68,480.19 × 21,030.10
  4. Step 4: Simplify right side
    45,654.10x = 1,440,145,243.72
  5. Step 5: Solve for x
    x = 1,440,145,243.72/45,654.10
  6. Step 6: Final answer
    x = 31,544.71

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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.