Home / 51,187.28-76,732.39-17,885.70

Finding the Fourth Proportional to 51,187.28, 76,732.39 and 17,885.70

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Solution

The fourth proportional to 51,187.28, 76,732.39 and 17,885.70 is: 26,811.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,187.28 : 76,732.39 = 17,885.70 : x
  2. Step 2: Convert to fraction form
    51,187.28/76,732.39 = 17,885.70/x
  3. Step 3: Cross multiply
    51,187.28x = 76,732.39 × 17,885.70
  4. Step 4: Simplify right side
    51,187.28x = 1,372,412,507.82
  5. Step 5: Solve for x
    x = 1,372,412,507.82/51,187.28
  6. Step 6: Final answer
    x = 26,811.59

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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.