Home / 89,604.50-134,355.15-53,616.78

Finding the Fourth Proportional to 89,604.50, 134,355.15 and 53,616.78

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Solution

The fourth proportional to 89,604.50, 134,355.15 and 53,616.78 is: 80,394.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,604.50 : 134,355.15 = 53,616.78 : x
  2. Step 2: Convert to fraction form
    89,604.50/134,355.15 = 53,616.78/x
  3. Step 3: Cross multiply
    89,604.50x = 134,355.15 × 53,616.78
  4. Step 4: Simplify right side
    89,604.50x = 7,203,690,519.42
  5. Step 5: Solve for x
    x = 7,203,690,519.42/89,604.50
  6. Step 6: Final answer
    x = 80,394.30

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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.