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Finding the Fourth Proportional to 55,336.90, 82,994.55 and 18,400.90

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Solution

The fourth proportional to 55,336.90, 82,994.55 and 18,400.90 is: 27,597.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,336.90 : 82,994.55 = 18,400.90 : x
  2. Step 2: Convert to fraction form
    55,336.90/82,994.55 = 18,400.90/x
  3. Step 3: Cross multiply
    55,336.90x = 82,994.55 × 18,400.90
  4. Step 4: Simplify right side
    55,336.90x = 1,527,174,415.10
  5. Step 5: Solve for x
    x = 1,527,174,415.10/55,336.90
  6. Step 6: Final answer
    x = 27,597.76

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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.