Home / 91,245.42-125,004.14-87,834.06

Finding the Fourth Proportional to 91,245.42, 125,004.14 and 87,834.06

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Solution

The fourth proportional to 91,245.42, 125,004.14 and 87,834.06 is: 120,330.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,245.42 : 125,004.14 = 87,834.06 : x
  2. Step 2: Convert to fraction form
    91,245.42/125,004.14 = 87,834.06/x
  3. Step 3: Cross multiply
    91,245.42x = 125,004.14 × 87,834.06
  4. Step 4: Simplify right side
    91,245.42x = 10,979,621,133.01
  5. Step 5: Solve for x
    x = 10,979,621,133.01/91,245.42
  6. Step 6: Final answer
    x = 120,330.65

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.