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Finding the Fourth Proportional to 65,446.83, 98,170.25 and 18,699.71

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Solution

The fourth proportional to 65,446.83, 98,170.25 and 18,699.71 is: 28,049.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,446.83 : 98,170.25 = 18,699.71 : x
  2. Step 2: Convert to fraction form
    65,446.83/98,170.25 = 18,699.71/x
  3. Step 3: Cross multiply
    65,446.83x = 98,170.25 × 18,699.71
  4. Step 4: Simplify right side
    65,446.83x = 1,835,754,621.28
  5. Step 5: Solve for x
    x = 1,835,754,621.28/65,446.83
  6. Step 6: Final answer
    x = 28,049.56

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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.