Home / 91,498.31-126,238.87-51,205.67

Finding the Fourth Proportional to 91,498.31, 126,238.87 and 51,205.67

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Solution

The fourth proportional to 91,498.31, 126,238.87 and 51,205.67 is: 70,647.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,498.31 : 126,238.87 = 51,205.67 : x
  2. Step 2: Convert to fraction form
    91,498.31/126,238.87 = 51,205.67/x
  3. Step 3: Cross multiply
    91,498.31x = 126,238.87 × 51,205.67
  4. Step 4: Simplify right side
    91,498.31x = 6,464,145,918.39
  5. Step 5: Solve for x
    x = 6,464,145,918.39/91,498.31
  6. Step 6: Final answer
    x = 70,647.71

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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.