Home / 74,321.68-111,486.27-21,017.50

Finding the Fourth Proportional to 74,321.68, 111,486.27 and 21,017.50

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Solution

The fourth proportional to 74,321.68, 111,486.27 and 21,017.50 is: 31,527.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,321.68 : 111,486.27 = 21,017.50 : x
  2. Step 2: Convert to fraction form
    74,321.68/111,486.27 = 21,017.50/x
  3. Step 3: Cross multiply
    74,321.68x = 111,486.27 × 21,017.50
  4. Step 4: Simplify right side
    74,321.68x = 2,343,162,793.38
  5. Step 5: Solve for x
    x = 2,343,162,793.38/74,321.68
  6. Step 6: Final answer
    x = 31,527.31

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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.