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Finding the Fourth Proportional to 65,873.72, 98,813.76 and 21,500.44

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Solution

The fourth proportional to 65,873.72, 98,813.76 and 21,500.44 is: 32,251.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,873.72 : 98,813.76 = 21,500.44 : x
  2. Step 2: Convert to fraction form
    65,873.72/98,813.76 = 21,500.44/x
  3. Step 3: Cross multiply
    65,873.72x = 98,813.76 × 21,500.44
  4. Step 4: Simplify right side
    65,873.72x = 2,124,539,318.05
  5. Step 5: Solve for x
    x = 2,124,539,318.05/65,873.72
  6. Step 6: Final answer
    x = 32,251.70

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1.5x scale

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.