Home / 89,034.68-122,873.78-51,311.36

Finding the Fourth Proportional to 89,034.68, 122,873.78 and 51,311.36

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Solution

The fourth proportional to 89,034.68, 122,873.78 and 51,311.36 is: 70,813.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,034.68 : 122,873.78 = 51,311.36 : x
  2. Step 2: Convert to fraction form
    89,034.68/122,873.78 = 51,311.36/x
  3. Step 3: Cross multiply
    89,034.68x = 122,873.78 × 51,311.36
  4. Step 4: Simplify right side
    89,034.68x = 6,304,820,760.14
  5. Step 5: Solve for x
    x = 6,304,820,760.14/89,034.68
  6. Step 6: Final answer
    x = 70,813.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.