Home / 91,306.26-126,003.26-51,021.72

Finding the Fourth Proportional to 91,306.26, 126,003.26 and 51,021.72

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Solution

The fourth proportional to 91,306.26, 126,003.26 and 51,021.72 is: 70,410.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,306.26 : 126,003.26 = 51,021.72 : x
  2. Step 2: Convert to fraction form
    91,306.26/126,003.26 = 51,021.72/x
  3. Step 3: Cross multiply
    91,306.26x = 126,003.26 × 51,021.72
  4. Step 4: Simplify right side
    91,306.26x = 6,428,903,178.36
  5. Step 5: Solve for x
    x = 6,428,903,178.36/91,306.26
  6. Step 6: Final answer
    x = 70,410.32

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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.