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Finding the Fourth Proportional to 69,499.08, 95,904 and 39,285.54

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Solution

The fourth proportional to 69,499.08, 95,904 and 39,285.54 is: 54,211.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,499.08 : 95,904 = 39,285.54 : x
  2. Step 2: Convert to fraction form
    69,499.08/95,904 = 39,285.54/x
  3. Step 3: Cross multiply
    69,499.08x = 95,904 × 39,285.54
  4. Step 4: Simplify right side
    69,499.08x = 3,767,640,428.16
  5. Step 5: Solve for x
    x = 3,767,640,428.16/69,499.08
  6. Step 6: Final answer
    x = 54,211.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.