Home / 89,985.11-124,180.38-49,699.89

Finding the Fourth Proportional to 89,985.11, 124,180.38 and 49,699.89

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Solution

The fourth proportional to 89,985.11, 124,180.38 and 49,699.89 is: 68,586.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,985.11 : 124,180.38 = 49,699.89 : x
  2. Step 2: Convert to fraction form
    89,985.11/124,180.38 = 49,699.89/x
  3. Step 3: Cross multiply
    89,985.11x = 124,180.38 × 49,699.89
  4. Step 4: Simplify right side
    89,985.11x = 6,171,751,226.16
  5. Step 5: Solve for x
    x = 6,171,751,226.16/89,985.11
  6. Step 6: Final answer
    x = 68,586.36

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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.