Home / 65,191.28-97,778.72-20,814.32

Finding the Fourth Proportional to 65,191.28, 97,778.72 and 20,814.32

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Solution

The fourth proportional to 65,191.28, 97,778.72 and 20,814.32 is: 31,218.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,191.28 : 97,778.72 = 20,814.32 : x
  2. Step 2: Convert to fraction form
    65,191.28/97,778.72 = 20,814.32/x
  3. Step 3: Cross multiply
    65,191.28x = 97,778.72 × 20,814.32
  4. Step 4: Simplify right side
    65,191.28x = 2,035,197,567.27
  5. Step 5: Solve for x
    x = 2,035,197,567.27/65,191.28
  6. Step 6: Final answer
    x = 31,218.86

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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.