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Finding the Fourth Proportional to 65,181.52, 89,951.84 and 36,887.20

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Solution

The fourth proportional to 65,181.52, 89,951.84 and 36,887.20 is: 50,905.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,181.52 : 89,951.84 = 36,887.20 : x
  2. Step 2: Convert to fraction form
    65,181.52/89,951.84 = 36,887.20/x
  3. Step 3: Cross multiply
    65,181.52x = 89,951.84 × 36,887.20
  4. Step 4: Simplify right side
    65,181.52x = 3,318,071,512.45
  5. Step 5: Solve for x
    x = 3,318,071,512.45/65,181.52
  6. Step 6: Final answer
    x = 50,905.10

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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.