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Finding the Fourth Proportional to 30,044.06, 45,062.16 and 7,859.15

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Solution

The fourth proportional to 30,044.06, 45,062.16 and 7,859.15 is: 11,787.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,044.06 : 45,062.16 = 7,859.15 : x
  2. Step 2: Convert to fraction form
    30,044.06/45,062.16 = 7,859.15/x
  3. Step 3: Cross multiply
    30,044.06x = 45,062.16 × 7,859.15
  4. Step 4: Simplify right side
    30,044.06x = 354,150,049.45
  5. Step 5: Solve for x
    x = 354,150,049.45/30,044.06
  6. Step 6: Final answer
    x = 11,787.69

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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.