Home / 65,188.11-97,781.34-20,814.30

Finding the Fourth Proportional to 65,188.11, 97,781.34 and 20,814.30

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Solution

The fourth proportional to 65,188.11, 97,781.34 and 20,814.30 is: 31,221.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,188.11 : 97,781.34 = 20,814.30 : x
  2. Step 2: Convert to fraction form
    65,188.11/97,781.34 = 20,814.30/x
  3. Step 3: Cross multiply
    65,188.11x = 97,781.34 × 20,814.30
  4. Step 4: Simplify right side
    65,188.11x = 2,035,250,093.13
  5. Step 5: Solve for x
    x = 2,035,250,093.13/65,188.11
  6. Step 6: Final answer
    x = 31,221.19

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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.