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Finding the Fourth Proportional to 89,755.08, 123,856.95 and 49,468.71

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Solution

The fourth proportional to 89,755.08, 123,856.95 and 49,468.71 is: 68,264.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,755.08 : 123,856.95 = 49,468.71 : x
  2. Step 2: Convert to fraction form
    89,755.08/123,856.95 = 49,468.71/x
  3. Step 3: Cross multiply
    89,755.08x = 123,856.95 × 49,468.71
  4. Step 4: Simplify right side
    89,755.08x = 6,127,043,541.03
  5. Step 5: Solve for x
    x = 6,127,043,541.03/89,755.08
  6. Step 6: Final answer
    x = 68,264.03

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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.