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Finding the Fourth Proportional to 89,777.66, 123,887.61 and 49,489.34

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Solution

The fourth proportional to 89,777.66, 123,887.61 and 49,489.34 is: 68,292.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,777.66 : 123,887.61 = 49,489.34 : x
  2. Step 2: Convert to fraction form
    89,777.66/123,887.61 = 49,489.34/x
  3. Step 3: Cross multiply
    89,777.66x = 123,887.61 × 49,489.34
  4. Step 4: Simplify right side
    89,777.66x = 6,131,116,053.08
  5. Step 5: Solve for x
    x = 6,131,116,053.08/89,777.66
  6. Step 6: Final answer
    x = 68,292.22

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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.