Home / 69,014.40-103,423.20-39,369.60

Finding the Fourth Proportional to 69,014.40, 103,423.20 and 39,369.60

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Solution

The fourth proportional to 69,014.40, 103,423.20 and 39,369.60 is: 58,998.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,014.40 : 103,423.20 = 39,369.60 : x
  2. Step 2: Convert to fraction form
    69,014.40/103,423.20 = 39,369.60/x
  3. Step 3: Cross multiply
    69,014.40x = 103,423.20 × 39,369.60
  4. Step 4: Simplify right side
    69,014.40x = 4,071,730,014.72
  5. Step 5: Solve for x
    x = 4,071,730,014.72/69,014.40
  6. Step 6: Final answer
    x = 58,998.27

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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.