Home / 91,177.40-136,766.10-28,847.90

Finding the Fourth Proportional to 91,177.40, 136,766.10 and 28,847.90

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Solution

The fourth proportional to 91,177.40, 136,766.10 and 28,847.90 is: 43,271.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,177.40 : 136,766.10 = 28,847.90 : x
  2. Step 2: Convert to fraction form
    91,177.40/136,766.10 = 28,847.90/x
  3. Step 3: Cross multiply
    91,177.40x = 136,766.10 × 28,847.90
  4. Step 4: Simplify right side
    91,177.40x = 3,945,414,776.19
  5. Step 5: Solve for x
    x = 3,945,414,776.19/91,177.40
  6. Step 6: Final answer
    x = 43,271.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.