Home / 73,280.30-109,924.70-20,685.38

Finding the Fourth Proportional to 73,280.30, 109,924.70 and 20,685.38

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Solution

The fourth proportional to 73,280.30, 109,924.70 and 20,685.38 is: 31,029.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,280.30 : 109,924.70 = 20,685.38 : x
  2. Step 2: Convert to fraction form
    73,280.30/109,924.70 = 20,685.38/x
  3. Step 3: Cross multiply
    73,280.30x = 109,924.70 × 20,685.38
  4. Step 4: Simplify right side
    73,280.30x = 2,273,833,537.84
  5. Step 5: Solve for x
    x = 2,273,833,537.84/73,280.30
  6. Step 6: Final answer
    x = 31,029.26

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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.