Home / 89,115.80-133,690.55-35,811.92

Finding the Fourth Proportional to 89,115.80, 133,690.55 and 35,811.92

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Solution

The fourth proportional to 89,115.80, 133,690.55 and 35,811.92 is: 53,724.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,115.80 : 133,690.55 = 35,811.92 : x
  2. Step 2: Convert to fraction form
    89,115.80/133,690.55 = 35,811.92/x
  3. Step 3: Cross multiply
    89,115.80x = 133,690.55 × 35,811.92
  4. Step 4: Simplify right side
    89,115.80x = 4,787,715,637.96
  5. Step 5: Solve for x
    x = 4,787,715,637.96/89,115.80
  6. Step 6: Final answer
    x = 53,724.66

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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.