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Finding the Fourth Proportional to 88,902.55, 133,406.88 and 31,971.70

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Solution

The fourth proportional to 88,902.55, 133,406.88 and 31,971.70 is: 47,976.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,902.55 : 133,406.88 = 31,971.70 : x
  2. Step 2: Convert to fraction form
    88,902.55/133,406.88 = 31,971.70/x
  3. Step 3: Cross multiply
    88,902.55x = 133,406.88 × 31,971.70
  4. Step 4: Simplify right side
    88,902.55x = 4,265,244,745.30
  5. Step 5: Solve for x
    x = 4,265,244,745.30/88,902.55
  6. Step 6: Final answer
    x = 47,976.63

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1.5x scale

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.