Home / 91,321.14-126,020.73-51,035.25

Finding the Fourth Proportional to 91,321.14, 126,020.73 and 51,035.25

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Solution

The fourth proportional to 91,321.14, 126,020.73 and 51,035.25 is: 70,427.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,321.14 : 126,020.73 = 51,035.25 : x
  2. Step 2: Convert to fraction form
    91,321.14/126,020.73 = 51,035.25/x
  3. Step 3: Cross multiply
    91,321.14x = 126,020.73 × 51,035.25
  4. Step 4: Simplify right side
    91,321.14x = 6,431,499,460.73
  5. Step 5: Solve for x
    x = 6,431,499,460.73/91,321.14
  6. Step 6: Final answer
    x = 70,427.28

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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.