Home / 89,576.13-123,573.75-57,755.28

Finding the Fourth Proportional to 89,576.13, 123,573.75 and 57,755.28

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Solution

The fourth proportional to 89,576.13, 123,573.75 and 57,755.28 is: 79,675.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,576.13 : 123,573.75 = 57,755.28 : x
  2. Step 2: Convert to fraction form
    89,576.13/123,573.75 = 57,755.28/x
  3. Step 3: Cross multiply
    89,576.13x = 123,573.75 × 57,755.28
  4. Step 4: Simplify right side
    89,576.13x = 7,137,036,531.90
  5. Step 5: Solve for x
    x = 7,137,036,531.90/89,576.13
  6. Step 6: Final answer
    x = 79,675.65

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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.