Home / 75,728.81-113,613.66-23,136.86

Finding the Fourth Proportional to 75,728.81, 113,613.66 and 23,136.86

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Solution

The fourth proportional to 75,728.81, 113,613.66 and 23,136.86 is: 34,711.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,728.81 : 113,613.66 = 23,136.86 : x
  2. Step 2: Convert to fraction form
    75,728.81/113,613.66 = 23,136.86/x
  3. Step 3: Cross multiply
    75,728.81x = 113,613.66 × 23,136.86
  4. Step 4: Simplify right side
    75,728.81x = 2,628,662,777.44
  5. Step 5: Solve for x
    x = 2,628,662,777.44/75,728.81
  6. Step 6: Final answer
    x = 34,711.53

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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.