Home / 49,732.80-74,534.40-20,126.40

Finding the Fourth Proportional to 49,732.80, 74,534.40 and 20,126.40

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Solution

The fourth proportional to 49,732.80, 74,534.40 and 20,126.40 is: 30,163.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,732.80 : 74,534.40 = 20,126.40 : x
  2. Step 2: Convert to fraction form
    49,732.80/74,534.40 = 20,126.40/x
  3. Step 3: Cross multiply
    49,732.80x = 74,534.40 × 20,126.40
  4. Step 4: Simplify right side
    49,732.80x = 1,500,109,148.16
  5. Step 5: Solve for x
    x = 1,500,109,148.16/49,732.80
  6. Step 6: Final answer
    x = 30,163.38

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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.