Home / 91,679.40-126,522.81-68,977.73

Finding the Fourth Proportional to 91,679.40, 126,522.81 and 68,977.73

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Solution

The fourth proportional to 91,679.40, 126,522.81 and 68,977.73 is: 95,193.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,679.40 : 126,522.81 = 68,977.73 : x
  2. Step 2: Convert to fraction form
    91,679.40/126,522.81 = 68,977.73/x
  3. Step 3: Cross multiply
    91,679.40x = 126,522.81 × 68,977.73
  4. Step 4: Simplify right side
    91,679.40x = 8,727,256,543.33
  5. Step 5: Solve for x
    x = 8,727,256,543.33/91,679.40
  6. Step 6: Final answer
    x = 95,193.21

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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.