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Finding the Fourth Proportional to 55,993.54, 84,002.77 and 20,454.79

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Solution

The fourth proportional to 55,993.54, 84,002.77 and 20,454.79 is: 30,686.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,993.54 : 84,002.77 = 20,454.79 : x
  2. Step 2: Convert to fraction form
    55,993.54/84,002.77 = 20,454.79/x
  3. Step 3: Cross multiply
    55,993.54x = 84,002.77 × 20,454.79
  4. Step 4: Simplify right side
    55,993.54x = 1,718,259,019.77
  5. Step 5: Solve for x
    x = 1,718,259,019.77/55,993.54
  6. Step 6: Final answer
    x = 30,686.74

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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.