Home / 69,915.20-104,847.36-30,462.72

Finding the Fourth Proportional to 69,915.20, 104,847.36 and 30,462.72

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Solution

The fourth proportional to 69,915.20, 104,847.36 and 30,462.72 is: 45,683.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,915.20 : 104,847.36 = 30,462.72 : x
  2. Step 2: Convert to fraction form
    69,915.20/104,847.36 = 30,462.72/x
  3. Step 3: Cross multiply
    69,915.20x = 104,847.36 × 30,462.72
  4. Step 4: Simplify right side
    69,915.20x = 3,193,935,770.42
  5. Step 5: Solve for x
    x = 3,193,935,770.42/69,915.20
  6. Step 6: Final answer
    x = 45,683.00

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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.