Home / 89,676.32-123,723.70-57,866.36

Finding the Fourth Proportional to 89,676.32, 123,723.70 and 57,866.36

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Solution

The fourth proportional to 89,676.32, 123,723.70 and 57,866.36 is: 79,836.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,676.32 : 123,723.70 = 57,866.36 : x
  2. Step 2: Convert to fraction form
    89,676.32/123,723.70 = 57,866.36/x
  3. Step 3: Cross multiply
    89,676.32x = 123,723.70 × 57,866.36
  4. Step 4: Simplify right side
    89,676.32x = 7,159,440,164.73
  5. Step 5: Solve for x
    x = 7,159,440,164.73/89,676.32
  6. Step 6: Final answer
    x = 79,836.46

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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.