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Finding the Fourth Proportional to 36,723, 55,101.78 and 19,201.08

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Solution

The fourth proportional to 36,723, 55,101.78 and 19,201.08 is: 28,810.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,723 : 55,101.78 = 19,201.08 : x
  2. Step 2: Convert to fraction form
    36,723/55,101.78 = 19,201.08/x
  3. Step 3: Cross multiply
    36,723x = 55,101.78 × 19,201.08
  4. Step 4: Simplify right side
    36,723x = 1,058,013,685.92
  5. Step 5: Solve for x
    x = 1,058,013,685.92/36,723
  6. Step 6: Final answer
    x = 28,810.66

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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.