Home / 91,399.94-126,135.34-51,113.62

Finding the Fourth Proportional to 91,399.94, 126,135.34 and 51,113.62

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Solution

The fourth proportional to 91,399.94, 126,135.34 and 51,113.62 is: 70,538.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,399.94 : 126,135.34 = 51,113.62 : x
  2. Step 2: Convert to fraction form
    91,399.94/126,135.34 = 51,113.62/x
  3. Step 3: Cross multiply
    91,399.94x = 126,135.34 × 51,113.62
  4. Step 4: Simplify right side
    91,399.94x = 6,447,233,837.33
  5. Step 5: Solve for x
    x = 6,447,233,837.33/91,399.94
  6. Step 6: Final answer
    x = 70,538.71

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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.