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Finding the Fourth Proportional to 48,285, 72,439.34 and 39,009.06

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Solution

The fourth proportional to 48,285, 72,439.34 and 39,009.06 is: 58,523.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,285 : 72,439.34 = 39,009.06 : x
  2. Step 2: Convert to fraction form
    48,285/72,439.34 = 39,009.06/x
  3. Step 3: Cross multiply
    48,285x = 72,439.34 × 39,009.06
  4. Step 4: Simplify right side
    48,285x = 2,825,790,365.38
  5. Step 5: Solve for x
    x = 2,825,790,365.38/48,285
  6. Step 6: Final answer
    x = 58,523.15

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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.