Home / 89,815.30-123,945.90-49,530.46

Finding the Fourth Proportional to 89,815.30, 123,945.90 and 49,530.46

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Solution

The fourth proportional to 89,815.30, 123,945.90 and 49,530.46 is: 68,352.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,815.30 : 123,945.90 = 49,530.46 : x
  2. Step 2: Convert to fraction form
    89,815.30/123,945.90 = 49,530.46/x
  3. Step 3: Cross multiply
    89,815.30x = 123,945.90 × 49,530.46
  4. Step 4: Simplify right side
    89,815.30x = 6,139,097,442.11
  5. Step 5: Solve for x
    x = 6,139,097,442.11/89,815.30
  6. Step 6: Final answer
    x = 68,352.47

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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.