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Finding the Fourth Proportional to 55,149.84, 82,101.03 and 54,821.79

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Solution

The fourth proportional to 55,149.84, 82,101.03 and 54,821.79 is: 81,612.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,149.84 : 82,101.03 = 54,821.79 : x
  2. Step 2: Convert to fraction form
    55,149.84/82,101.03 = 54,821.79/x
  3. Step 3: Cross multiply
    55,149.84x = 82,101.03 × 54,821.79
  4. Step 4: Simplify right side
    55,149.84x = 4,500,925,425.44
  5. Step 5: Solve for x
    x = 4,500,925,425.44/55,149.84
  6. Step 6: Final answer
    x = 81,612.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.