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Finding the Fourth Proportional to 82,350.30, 123,640.65 and 51,246.30

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Solution

The fourth proportional to 82,350.30, 123,640.65 and 51,246.30 is: 76,941.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,350.30 : 123,640.65 = 51,246.30 : x
  2. Step 2: Convert to fraction form
    82,350.30/123,640.65 = 51,246.30/x
  3. Step 3: Cross multiply
    82,350.30x = 123,640.65 × 51,246.30
  4. Step 4: Simplify right side
    82,350.30x = 6,336,125,842.10
  5. Step 5: Solve for x
    x = 6,336,125,842.10/82,350.30
  6. Step 6: Final answer
    x = 76,941.14

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1.5x scale

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.