Home / 82,276.07-123,389.64-34,890.45

Finding the Fourth Proportional to 82,276.07, 123,389.64 and 34,890.45

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Solution

The fourth proportional to 82,276.07, 123,389.64 and 34,890.45 is: 52,325.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,276.07 : 123,389.64 = 34,890.45 : x
  2. Step 2: Convert to fraction form
    82,276.07/123,389.64 = 34,890.45/x
  3. Step 3: Cross multiply
    82,276.07x = 123,389.64 × 34,890.45
  4. Step 4: Simplify right side
    82,276.07x = 4,305,120,064.94
  5. Step 5: Solve for x
    x = 4,305,120,064.94/82,276.07
  6. Step 6: Final answer
    x = 52,325.30

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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.