Home / 65,145.13-97,716.67-20,771.59

Finding the Fourth Proportional to 65,145.13, 97,716.67 and 20,771.59

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Solution

The fourth proportional to 65,145.13, 97,716.67 and 20,771.59 is: 31,157.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,145.13 : 97,716.67 = 20,771.59 : x
  2. Step 2: Convert to fraction form
    65,145.13/97,716.67 = 20,771.59/x
  3. Step 3: Cross multiply
    65,145.13x = 97,716.67 × 20,771.59
  4. Step 4: Simplify right side
    65,145.13x = 2,029,730,605.41
  5. Step 5: Solve for x
    x = 2,029,730,605.41/65,145.13
  6. Step 6: Final answer
    x = 31,157.06

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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.