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Finding the Fourth Proportional to 73,288.30, 109,932.45 and 38,223.40

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Solution

The fourth proportional to 73,288.30, 109,932.45 and 38,223.40 is: 57,335.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,288.30 : 109,932.45 = 38,223.40 : x
  2. Step 2: Convert to fraction form
    73,288.30/109,932.45 = 38,223.40/x
  3. Step 3: Cross multiply
    73,288.30x = 109,932.45 × 38,223.40
  4. Step 4: Simplify right side
    73,288.30x = 4,201,992,009.33
  5. Step 5: Solve for x
    x = 4,201,992,009.33/73,288.30
  6. Step 6: Final answer
    x = 57,335.10

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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.