Home / 89,460.90-123,438.60-57,625.20

Finding the Fourth Proportional to 89,460.90, 123,438.60 and 57,625.20

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Solution

The fourth proportional to 89,460.90, 123,438.60 and 57,625.20 is: 79,511.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,460.90 : 123,438.60 = 57,625.20 : x
  2. Step 2: Convert to fraction form
    89,460.90/123,438.60 = 57,625.20/x
  3. Step 3: Cross multiply
    89,460.90x = 123,438.60 × 57,625.20
  4. Step 4: Simplify right side
    89,460.90x = 7,113,174,012.72
  5. Step 5: Solve for x
    x = 7,113,174,012.72/89,460.90
  6. Step 6: Final answer
    x = 79,511.54

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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.