Home / 88,890.20-133,119.30-47,245.40

Finding the Fourth Proportional to 88,890.20, 133,119.30 and 47,245.40

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Solution

The fourth proportional to 88,890.20, 133,119.30 and 47,245.40 is: 70,753.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,890.20 : 133,119.30 = 47,245.40 : x
  2. Step 2: Convert to fraction form
    88,890.20/133,119.30 = 47,245.40/x
  3. Step 3: Cross multiply
    88,890.20x = 133,119.30 × 47,245.40
  4. Step 4: Simplify right side
    88,890.20x = 6,289,274,576.22
  5. Step 5: Solve for x
    x = 6,289,274,576.22/88,890.20
  6. Step 6: Final answer
    x = 70,753.30

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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.