Home / 89,810.20-123,938.96-49,525.60

Finding the Fourth Proportional to 89,810.20, 123,938.96 and 49,525.60

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Solution

The fourth proportional to 89,810.20, 123,938.96 and 49,525.60 is: 68,345.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,810.20 : 123,938.96 = 49,525.60 : x
  2. Step 2: Convert to fraction form
    89,810.20/123,938.96 = 49,525.60/x
  3. Step 3: Cross multiply
    89,810.20x = 123,938.96 × 49,525.60
  4. Step 4: Simplify right side
    89,810.20x = 6,138,151,357.38
  5. Step 5: Solve for x
    x = 6,138,151,357.38/89,810.20
  6. Step 6: Final answer
    x = 68,345.82

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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.