Home / 91,900.85-126,817.11-51,613.74

Finding the Fourth Proportional to 91,900.85, 126,817.11 and 51,613.74

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Solution

The fourth proportional to 91,900.85, 126,817.11 and 51,613.74 is: 71,223.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,900.85 : 126,817.11 = 51,613.74 : x
  2. Step 2: Convert to fraction form
    91,900.85/126,817.11 = 51,613.74/x
  3. Step 3: Cross multiply
    91,900.85x = 126,817.11 × 51,613.74
  4. Step 4: Simplify right side
    91,900.85x = 6,545,505,343.09
  5. Step 5: Solve for x
    x = 6,545,505,343.09/91,900.85
  6. Step 6: Final answer
    x = 71,223.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.