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Finding the Fourth Proportional to 89,511.98, 134,187.78 and 36,887.90

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Solution

The fourth proportional to 89,511.98, 134,187.78 and 36,887.90 is: 55,298.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,511.98 : 134,187.78 = 36,887.90 : x
  2. Step 2: Convert to fraction form
    89,511.98/134,187.78 = 36,887.90/x
  3. Step 3: Cross multiply
    89,511.98x = 134,187.78 × 36,887.90
  4. Step 4: Simplify right side
    89,511.98x = 4,949,905,409.86
  5. Step 5: Solve for x
    x = 4,949,905,409.86/89,511.98
  6. Step 6: Final answer
    x = 55,298.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.