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Finding the Fourth Proportional to 89,777.64, 123,887.58 and 49,489.32

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Solution

The fourth proportional to 89,777.64, 123,887.58 and 49,489.32 is: 68,292.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,777.64 : 123,887.58 = 49,489.32 : x
  2. Step 2: Convert to fraction form
    89,777.64/123,887.58 = 49,489.32/x
  3. Step 3: Cross multiply
    89,777.64x = 123,887.58 × 49,489.32
  4. Step 4: Simplify right side
    89,777.64x = 6,131,112,090.65
  5. Step 5: Solve for x
    x = 6,131,112,090.65/89,777.64
  6. Step 6: Final answer
    x = 68,292.19

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1.5x scale

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.