Home / 89,719.70-134,320.35-54,727.70

Finding the Fourth Proportional to 89,719.70, 134,320.35 and 54,727.70

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Solution

The fourth proportional to 89,719.70, 134,320.35 and 54,727.70 is: 81,933.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,719.70 : 134,320.35 = 54,727.70 : x
  2. Step 2: Convert to fraction form
    89,719.70/134,320.35 = 54,727.70/x
  3. Step 3: Cross multiply
    89,719.70x = 134,320.35 × 54,727.70
  4. Step 4: Simplify right side
    89,719.70x = 7,351,043,818.70
  5. Step 5: Solve for x
    x = 7,351,043,818.70/89,719.70
  6. Step 6: Final answer
    x = 81,933.44

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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.